Understanding Regulatory Chemical Lists
What Are Regulatory Chemical Lists?
Regulatory chemical lists are official catalogs maintained by government agencies (federal, state, and international) that identify chemicals requiring special handling, reporting, labeling, or monitoring in the workplace and environment. If your business manufactures, processes, stores, or uses chemicals, some of those chemicals may appear on one or more of these lists — and that means specific legal obligations apply to you.
Think of it like this: just as a restaurant needs to know which foods contain common allergens, any business handling chemicals needs to know which of its chemicals appear on government regulatory lists — and what that means for safety, labeling, reporting, and worker protection.
Why This Matters
Failing to comply with chemical regulations can result in:
- OSHA fines of up to $16,131 per violation (or $161,323 for willful violations)
- EPA fines of up to $62,689 per day per violation for TRI non-reporting
- California Prop 65 lawsuits with penalties of up to $2,500 per day per violation
- CERCLA liability for cleanup costs that can reach millions of dollars
- Criminal penalties in severe cases of knowing endangerment
Beyond fines, non-compliance creates real safety risks for workers and communities. Regulatory lists exist because the chemicals on them have been scientifically determined to pose specific health or environmental hazards.
The Lists Tellus Tracks
Tellus monitors 15 regulatory lists across federal, state, and international jurisdictions. Here is what each list is, who maintains it, and what it means when your chemical appears on it.
Federal Lists
1. OSHA Permissible Exposure Limits (PEL)
| Authority | Occupational Safety and Health Administration (OSHA) |
| Jurisdiction | Federal (all U.S. workplaces) |
| Chemicals | ~470 substances |
| Updates | Rarely (most PELs date to 1971; changes require federal rulemaking) |
| Official Source | 29 CFR 1910.1000 Tables Z-1, Z-2, Z-3 |
What it is: The legal maximum airborne concentration of a chemical that workers may be exposed to over an 8-hour work shift. These are legally enforceable limits — if air monitoring shows levels above the PEL, your company is in violation of OSHA regulations.
What it means for your business:
- You must keep workplace air concentrations below the PEL
- Industrial hygiene monitoring may be required
- Engineering controls (ventilation, enclosures) must be implemented before relying on respirators
- Workers must be informed of exposure levels
Example: Benzene (CAS 71-43-2) has an OSHA PEL of 1 ppm (8-hour TWA). Any workplace using products containing benzene must ensure air levels stay below this limit.
2. NIOSH Recommended Exposure Limits (REL)
| Authority | National Institute for Occupational Safety and Health (NIOSH) |
| Jurisdiction | Federal (advisory, not legally enforceable) |
| Chemicals | ~700 substances |
| Updates | Ongoing (NIOSH updates recommendations as new science emerges) |
| Official Source | NIOSH Pocket Guide to Chemical Hazards |
What it is: NIOSH's scientifically recommended maximum exposure level, typically more protective than OSHA PELs. While not legally binding, they represent the best available science on safe exposure levels.
What it means for your business:
- Not legally required, but following RELs reduces liability and protects workers
- Many companies voluntarily adopt RELs as their internal standards
- If OSHA has no PEL for a chemical but NIOSH has a REL, that REL becomes an important guideline
- Tellus lets you configure whether to use NIOSH RELs as your default standard (see Compliance Settings)
Example: Formaldehyde (CAS 50-00-0) has an OSHA PEL of 0.75 ppm but a NIOSH REL of 0.016 ppm — nearly 50 times more protective. A safety-conscious company might target the NIOSH level.
3. ACGIH Threshold Limit Values (TLV)
| Authority | American Conference of Governmental Industrial Hygienists (ACGIH) |
| Jurisdiction | Industry consensus (not a government agency) |
| Chemicals | ~700 substances |
| Updates | Annual (ACGIH updates TLVs each year based on latest research) |
| Official Source | ACGIH TLV/BEI Documentation |
What it is: Exposure guidelines developed by occupational health professionals based on the latest toxicological and epidemiological data. TLVs are often the most current exposure recommendations available.
What it means for your business:
- Not legally binding, but widely respected as best practice
- Many states adopt TLVs into their state OSHA plans, making them enforceable in those states
- Insurance companies and courts may reference TLVs when evaluating workplace safety
- ACGIH also classifies carcinogens (A1 = confirmed, A2 = suspected)
4. EPA Toxics Release Inventory (TRI / SARA 313)
| Authority | U.S. Environmental Protection Agency (EPA) |
| Jurisdiction | Federal |
| Chemicals | ~800 chemicals and chemical categories |
| Updates | Annual (effective January 1; chemicals added via federal rulemaking) |
| Official Source | EPA TRI Listed Chemicals |
What it is: The Toxics Release Inventory, established under the Emergency Planning and Community Right-to-Know Act (EPCRA) Section 313, requires facilities to report annually how much of each listed toxic chemical they release into the environment or transfer off-site.
What it means for your business:
TRI reporting (Form R) is required if all three conditions are met:
- Your facility is in a covered industry (manufacturing, mining, utilities, and others with NAICS codes 21-33, 4911, 4931, 4939, 5112, 5171, 5172, 5174, 5179, 4246, 5622)
- You have 10 or more full-time equivalent employees
- You manufacture, process, or otherwise use a TRI-listed chemical above its threshold in a calendar year
| Activity | Standard Threshold | PBT Chemical Threshold |
|---|---|---|
| Manufacturing or Processing | 25,000 lbs/year | 10–100 lbs/year (varies) |
| Otherwise Use | 10,000 lbs/year | 10–100 lbs/year (varies) |
Key deadlines:
- Form R (or Form A for small quantities): Due July 1 of the following year
- Reports are submitted to EPA and your state environmental agency
Example: A paint manufacturer using 15,000 lbs/year of Toluene (CAS 108-88-3, threshold 25,000 lbs for manufacturing) would NOT need to report. But if they use 30,000 lbs, a Form R is required by July 1 of the next year.
5. CERCLA Hazardous Substances (Superfund)
| Authority | U.S. Environmental Protection Agency (EPA) |
| Jurisdiction | Federal |
| Chemicals | ~800 hazardous substances |
| Updates | Rarely (requires federal rulemaking) |
| Official Source | 40 CFR 302.4 — Table 302.4 |
What it is: The Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA, commonly known as "Superfund") assigns a Reportable Quantity (RQ) to each listed hazardous substance. If you release an amount equal to or greater than the RQ within any 24-hour period, you must immediately notify the National Response Center.
What it means for your business:
- Know the RQ for every CERCLA-listed chemical on your site
- If a spill or release meets or exceeds the RQ, you must call the National Response Center at 1-800-424-8802 within 24 hours
- RQ values range from 1 pound (highly toxic substances like mercury) to 5,000 pounds (less toxic substances like acetone)
- Failure to report is a federal crime
Example: Your facility has a spill of 15 lbs of Benzene (CAS 71-43-2, RQ = 10 lbs). Since 15 lbs exceeds the 10 lb RQ, you must report this spill to the National Response Center immediately.
6. EPCRA Section 302 — Extremely Hazardous Substances (EHS)
| Authority | U.S. Environmental Protection Agency (EPA) |
| Jurisdiction | Federal |
| Chemicals | ~350 substances |
| Updates | Rarely (requires federal rulemaking) |
| Official Source | 40 CFR 355 Appendices A & B |
What it is: EPCRA Section 302 identifies chemicals that are extremely hazardous to communities in the event of an accidental release. Each substance has a Threshold Planning Quantity (TPQ) — if your facility has this amount or more present at any one time, you must participate in community emergency planning.
What it means for your business:
- If you store an EHS chemical at or above its TPQ, you must notify your Local Emergency Planning Committee (LEPC) and State Emergency Response Commission (SERC)
- You must designate a facility emergency coordinator
- You must participate in local emergency response planning
- TPQ values range from 1 lb to 10,000 lbs depending on the chemical's hazard severity
7. TSCA Chemical Inventory
| Authority | U.S. Environmental Protection Agency (EPA) |
| Jurisdiction | Federal |
| Chemicals | ~86,000+ substances (but only a subset carries regulatory flags) |
| Updates | Ongoing |
| Official Source | EPA TSCA Chemical Substance Inventory |
What it is: The Toxic Substances Control Act (TSCA) Inventory is the master list of all chemicals manufactured or processed in the United States. Being on the TSCA inventory means the chemical is allowed to be manufactured or imported. Chemicals NOT on the inventory may require a pre-manufacture notice (PMN) before production.
What it means for your business:
- If you manufacture or import a chemical, verify it is on the TSCA inventory
- Chemicals with Significant New Use Rules (SNURs) require notification before using them in new ways
- TSCA Section 5 governs new chemical review
- Tellus tracks TSCA flags (like SNUR designations) rather than the full 86,000-chemical inventory
8. Clean Air Act — Hazardous Air Pollutants (HAP)
| Authority | U.S. Environmental Protection Agency (EPA) |
| Jurisdiction | Federal |
| Chemicals | ~190 substances |
| Updates | Rarely (Congress established the original list in the 1990 Clean Air Act amendments) |
| Official Source | EPA HAP List |
What it is: Section 112 of the Clean Air Act identifies substances that cause or may cause cancer or other serious health effects. Facilities emitting HAPs are subject to National Emission Standards for Hazardous Air Pollutants (NESHAPs) and Maximum Achievable Control Technology (MACT) requirements.
What it means for your business:
- If your facility emits HAPs, you may be subject to emission standards
- Major sources (10+ tons/year of one HAP or 25+ tons/year of combined HAPs) must obtain Title V operating permits
- Area sources (below major source thresholds) may still be subject to MACT standards
9. NTP Report on Carcinogens
| Authority | National Toxicology Program (NTP), U.S. Department of Health and Human Services |
| Jurisdiction | Federal |
| Chemicals | ~250 substances |
| Updates | Every 2-3 years (latest is the 16th edition) |
| Official Source | NTP Report on Carcinogens |
What it is: A science-based report that classifies chemicals into two categories:
- Known to be a human carcinogen (K): Sufficient evidence from human studies
- Reasonably anticipated to be a human carcinogen (R): Limited evidence from human studies but sufficient evidence from animal studies
What it means for your business:
- Carcinogens require special handling, minimized exposure, and worker notification
- OSHA requires carcinogen-specific protections including regulated areas and medical surveillance
- Workers must be informed they are working with carcinogens
- Exposure records must be retained for 30 years
State Lists
10. California Proposition 65 (Safe Drinking Water and Toxic Enforcement Act)
| Authority | California Office of Environmental Health Hazard Assessment (OEHHA) |
| Jurisdiction | State of California (but affects any business selling products in CA) |
| Chemicals | ~900 substances |
| Updates | Quarterly (February, May, August, November) |
| Official Source | OEHHA Proposition 65 List |
What it is: California's landmark consumer protection law requires businesses to provide "clear and reasonable" warnings before knowingly exposing anyone to chemicals known to the state to cause cancer or reproductive harm. The list includes chemicals categorized as:
- Cancer — known to cause cancer
- Reproductive toxicity — known to cause birth defects or reproductive harm
- Both — known to cause both
What it means for your business:
- If you sell products in California or have employees in California (with 10+ employees), Prop 65 applies to you
- Products containing listed chemicals must carry specific warning labels
- Warnings must follow the format specified in California Code of Regulations, Title 27
- Private enforcement (citizen lawsuits) is common — attorneys actively search for non-compliant products
- Penalties: up to $2,500 per day per violation
Why it matters even if you're not in California: If you ship products to California consumers (including through e-commerce), Prop 65 applies. This is why Tellus includes a "Ships to California" setting in Compliance Settings.
Example warning text:
WARNING: This product can expose you to chemicals including Formaldehyde, which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.
11-14. State Right-to-Know Lists
Several states maintain their own chemical lists that go beyond federal requirements:
| List | Authority | Chemicals | Key Requirement |
|---|---|---|---|
| New Jersey RTK | NJ Department of Health | ~2,500 | Employers must label all containers, maintain a workplace survey of hazardous substances, and provide access to safety data sheets |
| Pennsylvania RTK | PA Department of Labor & Industry | ~1,000 | Environmental Hazard Lists require reporting; workers have the right to know about chemicals in their workplace |
| Massachusetts RTK | MA Department of Labor Standards | ~1,000 | Employers must report toxic or hazardous substances used in the workplace |
| Minnesota RTK | MN Department of Labor and Industry | ~1,000 | Employee Right to Know Act requires training and information about hazardous substances |
What state RTK lists mean for your business:
- If you operate in any of these states, you have additional obligations beyond federal OSHA HazCom
- Requirements typically include: container labeling, workplace chemical surveys, employee training, and state-specific reporting
- The chemical lists often include substances not covered by federal regulations
- Tellus tracks these state lists to flag which of your inventory chemicals trigger state-specific requirements
International Lists
15. IARC Carcinogen Classifications
| Authority | International Agency for Research on Cancer (IARC), a division of the World Health Organization (WHO) |
| Jurisdiction | International |
| Chemicals | ~500 agents evaluated |
| Updates | Ongoing (IARC publishes monographs as evaluations are completed) |
| Official Source | IARC Monographs — List of Classifications |
What it is: IARC evaluates scientific evidence on substances, mixtures, and exposure circumstances to classify them by carcinogenic risk:
| Group | Classification | Meaning | Agents |
|---|---|---|---|
| 1 | Carcinogenic to humans | Sufficient evidence in humans | ~125 |
| 2A | Probably carcinogenic | Limited human evidence, sufficient animal evidence | ~95 |
| 2B | Possibly carcinogenic | Limited evidence in humans and animals | ~320 |
| 3 | Not classifiable | Inadequate evidence | ~500 |
What it means for your business:
- IARC Group 1 and 2A chemicals warrant the highest level of caution
- While IARC classifications are not directly enforceable in the U.S., they inform OSHA and EPA rulemaking
- Many IARC Group 1 chemicals are also listed under NTP, Prop 65, and OSHA carcinogen standards
- Workers should be informed when they handle IARC-classified carcinogens
Which Lists Apply to Your Business?
Not every list is relevant to every company. Here is a guide based on business type:
Manufacturing Facilities
| List | Relevant If... |
|---|---|
| OSHA PEL / NIOSH REL | Always — you have workers in contact with chemicals |
| EPA TRI (SARA 313) | 10+ employees AND in a covered NAICS code AND use above thresholds |
| CERCLA | You store any CERCLA-listed substance (know your RQs for spill response) |
| EPCRA 302 | You store extremely hazardous substances at or above TPQ |
| TSCA | You manufacture or import chemicals |
| CAA HAP | You have emissions of hazardous air pollutants |
| CA Prop 65 | You sell products to California consumers |
| State RTK | You operate in NJ, PA, MA, or MN |
| IARC / NTP | You use known or suspected carcinogens |
Warehousing & Distribution
| List | Relevant If... |
|---|---|
| OSHA PEL / NIOSH REL | Workers handle open containers or can be exposed to fumes/dusts |
| CERCLA | Always — you need spill response RQs |
| EPCRA 302 | You store EHS chemicals above TPQ |
| CA Prop 65 | You distribute products to California |
Laboratories & Research Facilities
| List | Relevant If... |
|---|---|
| OSHA PEL / NIOSH REL | Always — labs require a Chemical Hygiene Plan under OSHA 1910.1450 |
| CERCLA | Always — know your RQs |
| IARC / NTP | Especially important for carcinogen handling protocols |
| CA Prop 65 | If in California or selling products derived from research |
Construction & Maintenance
| List | Relevant If... |
|---|---|
| OSHA PEL / NIOSH REL | Always — paints, solvents, adhesives, welding fumes |
| CA Prop 65 | Projects in California |
| State RTK | Projects in NJ, PA, MA, or MN |
Retail & Consumer Products
| List | Relevant If... |
|---|---|
| CA Prop 65 | Critical — this is where most Prop 65 lawsuits originate |
| OSHA PEL / NIOSH REL | Workers using chemicals in back-of-house operations |
| State RTK | Stores in NJ, PA, MA, or MN |
How Tellus Maintains Regulatory Data
Tellus uses a multi-layered approach to build and maintain accurate regulatory data for every chemical in your inventory.
Data Architecture
Regulatory data in Tellus lives in two places:
ref_regulatory_list_definitions— Metadata about each of the 15 tracked lists (name, authority, jurisdiction, chemical count, last updated date, source URL)chemiq_regulatory_lists— One row per unique CAS number, with boolean flags indicating which lists that chemical appears on, plus list-specific data (TRI thresholds, CERCLA RQs, Prop 65 type, carcinogen classification, etc.)
How Data Gets Into the System
Automatic Enrichment (Real-Time)
When a new SDS (Safety Data Sheet) is uploaded and parsed, Tellus extracts the CAS numbers from the composition section (SDS Section 3). For each new CAS number, the background enrichment service automatically:
- Queries PubChem PUG View API — NIH's public chemical database — for regulatory information, safety data, and toxicity classifications
- Parses text blocks using keyword matching and regular expressions to determine which lists the chemical appears on
- Falls back to SDS Section 15 (Regulatory Information) when PubChem has no data — this is common for UVCB substances and petroleum mixtures
- Stores the results as boolean flags and metadata in the regulatory lists table
This process happens automatically within minutes of SDS upload, with no manual intervention required.
Bulk Seed Data (Periodic)
For comprehensive coverage beyond reactive enrichment, Tellus periodically seeds data from authoritative public sources:
| Source | Method | Chemicals |
|---|---|---|
| EPA TRI Chemical List | Download from EPA public API | ~800 |
| CA Prop 65 List | Download from OEHHA public API | ~900 |
| Clean Air Act HAP List | Maintained reference dataset | ~190 |
| IARC Classifications | Maintained reference dataset | ~500 |
| NTP Report on Carcinogens | Maintained reference dataset | ~250 |
| State RTK Lists | Maintained reference datasets from state agencies | ~2,500 unique CAS |
The seed process uses upsert logic (insert or update on conflict) so it can be re-run safely whenever lists are updated.
Update Frequency
| Data Source | Update Schedule | How Tellus Refreshes |
|---|---|---|
| EPA TRI List | Annually (January 1) | Re-seed after EPA publishes annual update |
| CA Prop 65 | Quarterly (Feb, May, Aug, Nov) | Re-seed after OEHHA quarterly update |
| IARC Monographs | As published | Re-seed after new monographs are released |
| NTP Report | Every 2-3 years | Re-seed after new edition |
| OSHA PELs | Rarely | Enrichment picks up via PubChem |
| NIOSH RELs | Annually | Enrichment picks up via PubChem |
| State RTK Lists | Annually | Re-seed from state agency publications |
| CERCLA RQs | Rarely | Static dataset, updated after federal rulemaking |
How Tellus Checks Compliance
The Compliance Dashboard
The Compliance Hub dashboard provides a real-time overview of your regulatory exposure:
- Inventory Chemicals — Total unique chemicals in your company inventory
- Regulated Chemicals — How many of your chemicals appear on at least one regulatory list (with percentage)
- Missing SDS — Chemicals in inventory without an associated Safety Data Sheet
- Lists Tracked — Number of regulatory lists being monitored
A per-list breakdown shows how many of your inventory chemicals appear on each specific list, with visual bar charts for quick comparison.
Cross-Referencing Your Inventory
The "My Chemicals" view in the Compliance Hub cross-references every chemical in your company's inventory against all 15 tracked regulatory lists. For each chemical, you can see:
- Which lists it appears on (shown as icons — green check for "not listed", red warning for "listed")
- List-specific data (TRI thresholds, CERCLA RQs, Prop 65 type, carcinogen classification)
- Exposure limits (OSHA PEL, NIOSH REL, NIOSH IDLH, ACGIH TLV)
- Which products in your inventory contain this chemical and at what sites
This cross-reference is company-specific — it only shows chemicals that are actually in your inventory, not all 8,000+ chemicals in the master regulatory database.
How Each Check Works
Exposure Limit Compliance
For chemicals with OSHA PELs:
- Tellus retrieves the PEL value (in ppm and mg/m3) from PubChem
- The PEL is displayed alongside the NIOSH REL and ACGIH TLV for comparison
- The Action Level (50% of PEL) is calculated — monitoring is recommended when exposure may exceed the Action Level
- If the chemical has a substance-specific OSHA standard (29 CFR 1910.1001-1052), that is flagged separately
TRI Threshold Evaluation
For TRI-listed chemicals:
- The annual reporting threshold is retrieved (typically 10,000 or 25,000 lbs; lower for PBT chemicals)
- If your company has entered annual usage data, Tellus calculates:
chemical_usage = product_annual_usage × (concentration_percent / 100) - If calculated usage exceeds the threshold AND your company has 10+ employees in a covered NAICS code, TRI reporting is flagged as required
- The reporting deadline (July 1 of the following year) is shown
CERCLA Spill Reporting
For CERCLA-listed chemicals:
- The Reportable Quantity (RQ) in pounds is retrieved
- This RQ is displayed prominently so that anyone handling the chemical knows the spill reporting threshold
- If a release equals or exceeds the RQ within 24 hours, the National Response Center (1-800-424-8802) must be notified
Prop 65 Warning Requirements
For Prop 65-listed chemicals:
- Tellus checks your company's "Ships to California" setting
- If enabled, any Prop 65-listed chemical in your inventory is flagged
- The listing type (cancer, reproductive, or both) determines the required warning text
- Tellus generates the California-compliant warning text per Title 27 regulations
Carcinogen Identification
For classified carcinogens:
- IARC, NTP, ACGIH, and OSHA carcinogen classifications are all checked
- The highest-priority classification is displayed (IARC Group 1 > 2A > 2B; NTP K > R)
- Special handling requirements are flagged: regulated areas, medical surveillance, 30-year record retention
Progressive Compliance Checking
Tellus uses progressive checking — compliance results improve as more data becomes available:
| Stage | When | What's Available | Completeness |
|---|---|---|---|
| Initial | After SDS is parsed | GHS classification, CAS numbers, basic regulatory lookups | Preliminary |
| Enriched | After PubChem data arrives | Exposure limits (PEL/REL), carcinogen classifications | Complete (minus usage) |
| Usage-Based | After inventory quantities are entered | Annual usage for TRI threshold calculations | Full |
Each stage re-runs the compliance checks with the newly available data, replacing previous results.
Using the Compliance Hub in Tellus
Getting Started
- Navigate to ChemIQ > Compliance in the sidebar
- Start with the Dashboard to see your overall compliance posture
- Use Regulatory Lists to browse all tracked lists and see which chemicals are on each one
- Use My Chemicals to see which of YOUR chemicals are regulated and on which lists
- Configure Settings to tell Tellus about your business:
- Do you ship to California? (Enables Prop 65 tracking)
- How many employees do you have? (Affects TRI applicability)
- What is your NAICS code? (Determines TRI-covered industries)
- Do you prefer NIOSH RELs over OSHA PELs? (More protective defaults)
Recommended Workflow
- Upload your SDS documents — Tellus automatically extracts chemicals and enriches regulatory data
- Review the dashboard — See how many of your chemicals are regulated and on which lists
- Configure compliance settings — Especially "Ships to California" and employee count
- Review flagged chemicals — Use "My Chemicals" to identify chemicals requiring attention
- Take action — For each flagged chemical:
- TRI-listed: Track annual usage and file Form R if above threshold
- CERCLA: Post RQ values at storage locations for spill response
- Prop 65: Ensure product warning labels are in place
- Carcinogens: Verify special handling procedures are implemented
- OSHA PEL: Verify exposure monitoring and engineering controls
Glossary
| Term | Definition |
|---|---|
| CAS Number | Chemical Abstracts Service registry number — a unique identifier for every chemical substance (e.g., 71-43-2 for benzene) |
| PEL | Permissible Exposure Limit — the maximum airborne concentration legally allowed in the workplace (set by OSHA) |
| REL | Recommended Exposure Limit — NIOSH's recommended maximum exposure level (advisory, not legally binding) |
| TLV | Threshold Limit Value — ACGIH's recommended exposure guideline |
| IDLH | Immediately Dangerous to Life or Health — concentration at which workers must evacuate or use supplied-air respirators |
| TWA | Time-Weighted Average — exposure averaged over an 8-hour work shift |
| RQ | Reportable Quantity — the amount of a CERCLA substance that triggers spill reporting requirements |
| TPQ | Threshold Planning Quantity — the amount of an EHS substance that triggers emergency planning requirements |
| PBT | Persistent, Bioaccumulative, and Toxic — chemicals that persist in the environment, accumulate in organisms, and are toxic (have lower TRI thresholds) |
| NAICS | North American Industry Classification System — codes that classify businesses by industry type |
| SDS | Safety Data Sheet — the standardized 16-section document describing a chemical product's hazards, handling, and regulatory status |
| GHS | Globally Harmonized System — the international standard for chemical classification and labeling |
| LEPC | Local Emergency Planning Committee — local body responsible for chemical emergency preparedness |
| NRC | National Response Center — the federal point of contact for reporting chemical spills (1-800-424-8802) |
| Form R | The EPA form used for annual TRI reporting of toxic chemical releases |