Passage Data · Cited limits by place

Cited environmental limits in United States (US)

Numeric environmental limits and guidelines held for United States: 66 instruments of its own, every row cited to its source. Each parameter opens its rows, with what was searched.

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Held in United States's own instruments: 1,008 parameters

Instruments held

  1. 40 CFR Part 133 — Secondary Treatment Regulation · eCFR as of 2026-10-05 · United States (US) · 19 rows · source
  2. 40 CFR Part 405 — PART 405—DAIRY PRODUCTS PROCESSING POINT SOURCE CATEGORY · eCFR as of 2026-10-05 · United States (US) · 179 rows · source
  3. 40 CFR Part 406 — PART 406—GRAIN MILLS POINT SOURCE CATEGORY · eCFR as of 2026-10-05 · United States (US) · 73 rows · source
  4. 40 CFR Part 407 — PART 407—CANNED AND PRESERVED FRUITS AND VEGETABLES PROCESSING POINT SOURCE CATEGORY · eCFR as of 2026-10-05 · United States (US) · 53 rows · source
  5. 40 CFR Part 408 — PART 408—CANNED AND PRESERVED SEAFOOD PROCESSING POINT SOURCE CATEGORY · eCFR as of 2026-10-05 · United States (US) · 366 rows · source
  6. 40 CFR Part 409 — PART 409—SUGAR PROCESSING POINT SOURCE CATEGORY · eCFR as of 2026-10-05 · United States (US) · 47 rows · source
  7. 40 CFR Part 410 — PART 410—TEXTILE MILLS POINT SOURCE CATEGORY · eCFR as of 2026-10-05 · United States (US) · 382 rows · source
  8. 40 CFR Part 411 — PART 411—CEMENT MANUFACTURING POINT SOURCE CATEGORY · eCFR as of 2026-10-05 · United States (US) · 8 rows · source
  9. 40 CFR Part 412 — PART 412—CONCENTRATED ANIMAL FEEDING OPERATIONS (CAFO) POINT SOURCE CATEGORY · eCFR as of 2026-10-05 · United States (US) · 4 rows · source
  10. 40 CFR Part 413 — PART 413—ELECTROPLATING POINT SOURCE CATEGORY · eCFR as of 2026-10-05 · United States (US) · 349 rows · source
  11. 40 CFR Part 414 — PART 414—ORGANIC CHEMICALS, PLASTICS, AND SYNTHETIC FIBERS · eCFR as of 2026-08-01 · United States (US) · 640 rows · source
  12. 40 CFR Part 415 — PART 415—INORGANIC CHEMICALS MANUFACTURING POINT SOURCE CATEGORY · eCFR as of 2026-08-01 · United States (US) · 489 rows · source
  13. 40 CFR Part 417 — PART 417—SOAP AND DETERGENT MANUFACTURING POINT SOURCE CATEGORY · eCFR as of 2026-10-05 · United States (US) · 655 rows · source
  14. 40 CFR Part 418 — PART 418—FERTILIZER MANUFACTURING POINT SOURCE CATEGORY · eCFR as of 2026-08-01 · United States (US) · 110 rows · source
  15. 40 CFR Part 419 — PART 419—PETROLEUM REFINING POINT SOURCE CATEGORY · eCFR as of 2026-10-05 · United States (US) · 607 rows · source
  16. 40 CFR Part 420 — PART 420—IRON AND STEEL MANUFACTURING POINT SOURCE CATEGORY · eCFR as of 2026-10-05 · United States (US) · 1,735 rows · source
  17. 40 CFR Part 421 — PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY · eCFR as of 2026-10-05 · United States (US) · 10,099 rows · source
  18. 40 CFR Part 422 — PART 422—PHOSPHATE MANUFACTURING POINT SOURCE CATEGORY · eCFR as of 2026-08-01 · United States (US) · 93 rows · source
  19. 40 CFR Part 423 — PART 423—STEAM ELECTRIC POWER GENERATING POINT SOURCE CATEGORY · eCFR as of 2026-10-05 · United States (US) · 206 rows · source
  20. 40 CFR Part 424 — PART 424—FERROALLOY MANUFACTURING POINT SOURCE CATEGORY · eCFR as of 2026-10-05 · United States (US) · 122 rows · source
  21. 40 CFR Part 425 — PART 425—LEATHER TANNING AND FINISHING POINT SOURCE CATEGORY · eCFR as of 2026-10-05 · United States (US) · 189 rows · source
  22. 40 CFR Part 426 — PART 426—GLASS MANUFACTURING POINT SOURCE CATEGORY · eCFR as of 2026-10-05 · United States (US) · 152 rows · source
  23. 40 CFR Part 427 — PART 427—ASBESTOS MANUFACTURING POINT SOURCE CATEGORY · eCFR as of 2026-10-05 · United States (US) · 46 rows · source
  24. 40 CFR Part 428 — PART 428—RUBBER MANUFACTURING POINT SOURCE CATEGORY · eCFR as of 2026-10-05 · United States (US) · 248 rows · source
  25. 40 CFR Part 429 — PART 429—TIMBER PRODUCTS PROCESSING POINT SOURCE CATEGORY · eCFR as of 2026-10-05 · United States (US) · 54 rows · source
  26. 40 CFR Part 430 — PART 430—THE PULP, PAPER, AND PAPERBOARD POINT SOURCE CATEGORY · eCFR as of 2026-10-05 · United States (US) · 983 rows · source
  27. 40 CFR Part 432 — PART 432—MEAT AND POULTRY PRODUCTS POINT SOURCE CATEGORY · eCFR as of 2026-10-05 · United States (US) · 210 rows · source
  28. 40 CFR Part 433 — PART 433—METAL FINISHING POINT SOURCE CATEGORY · eCFR as of 2026-10-05 · United States (US) · 103 rows · source
  29. 40 CFR Part 434 — PART 434—COAL MINING POINT SOURCE CATEGORY BPT, BAT, BCT LIMITATIONS AND NEW SOURCE PERFORMANCE STANDARDS · eCFR as of 2026-10-05 · United States (US) · 91 rows · source
  30. 40 CFR Part 435 — PART 435—OIL AND GAS EXTRACTION POINT SOURCE CATEGORY · eCFR as of 2026-10-05 · United States (US) · 6 rows · source
  31. 40 CFR Part 436 — PART 436—MINERAL MINING AND PROCESSING POINT SOURCE CATEGORY · eCFR as of 2026-10-05 · United States (US) · 25 rows · source
  32. 40 CFR Part 437 — PART 437—THE CENTRALIZED WASTE TREATMENT POINT SOURCE CATEGORY · eCFR as of 2026-10-05 · United States (US) · 893 rows · source
  33. 40 CFR Part 438 — PART 438—METAL PRODUCTS AND MACHINERY POINT SOURCE CATEGORY · eCFR as of 2026-10-05 · United States (US) · 2 rows · source
  34. 40 CFR Part 439 — PART 439—PHARMACEUTICAL MANUFACTURING POINT SOURCE CATEGORY · eCFR as of 2026-10-05 · United States (US) · 232 rows · source
  35. 40 CFR Part 440 — PART 440—ORE MINING AND DRESSING POINT SOURCE CATEGORY · eCFR as of 2026-10-05 · United States (US) · 400 rows · source
  36. 40 CFR Part 442 — PART 442—TRANSPORTATION EQUIPMENT CLEANING POINT SOURCE CATEGORY · eCFR as of 2026-10-05 · United States (US) · 55 rows · source
  37. 40 CFR Part 443 — PART 443—EFFLUENT LIMITATIONS GUIDELINES FOR EXISTING SOURCES AND STANDARDS OF PERFORMANCE AND PRETREATMENT STANDARDS FOR NEW SOURCES FOR THE PAVING AND ROOFING MATERIALS (TARS AND ASPHALT) POINT SOURCE CATEGORY · eCFR as of 2026-10-05 · United States (US) · 33 rows · source
  38. 40 CFR Part 444 — PART 444—WASTE COMBUSTORS POINT SOURCE CATEGORY · eCFR as of 2026-10-05 · United States (US) · 39 rows · source
  39. 40 CFR Part 445 — PART 445—LANDFILLS POINT SOURCE CATEGORY · eCFR as of 2026-10-05 · United States (US) · 44 rows · source
  40. 40 CFR Part 446 — PART 446—PAINT FORMULATING POINT SOURCE CATEGORY · eCFR as of 2026-10-05 · United States (US) · 0 rows · source
  41. 40 CFR Part 447 — PART 447—INK FORMULATING POINT SOURCE CATEGORY · eCFR as of 2026-10-05 · United States (US) · 0 rows · source
  42. 40 CFR Part 449 — PART 449—AIRPORT DEICING POINT SOURCE CATEGORY · eCFR as of 2026-10-05 · United States (US) · 4 rows · source
  43. 40 CFR Part 454 — PART 454—GUM AND WOOD CHEMICALS MANUFACTURING POINT SOURCE CATEGORY · eCFR as of 2026-10-05 · United States (US) · 25 rows · source
  44. 40 CFR Part 455 — PART 455—PESTICIDE CHEMICALS · eCFR as of 2026-10-05 · United States (US) · 19 rows · source
  45. 40 CFR Part 457 — PART 457—EXPLOSIVES MANUFACTURING POINT SOURCE CATEGORY · eCFR as of 2026-10-05 · United States (US) · 12 rows · source
  46. 40 CFR Part 458 — PART 458—CARBON BLACK MANUFACTURING POINT SOURCE CATEGORY · eCFR as of 2026-08-01 · United States (US) · 4 rows · source
  47. 40 CFR Part 459 — PART 459—PHOTOGRAPHIC POINT SOURCE CATEGORY · eCFR as of 2026-10-05 · United States (US) · 5 rows · source
  48. 40 CFR Part 460 — PART 460—HOSPITAL POINT SOURCE CATEGORY · eCFR as of 2026-10-05 · United States (US) · 5 rows · source
  49. 40 CFR Part 461 — PART 461—BATTERY MANUFACTURING POINT SOURCE CATEGORY · eCFR as of 2026-10-05 · United States (US) · 1,644 rows · source
  50. 40 CFR Part 463 — PART 463—PLASTICS MOLDING AND FORMING POINT SOURCE CATEGORY · eCFR as of 2026-10-05 · United States (US) · 32 rows · source
  51. 40 CFR Part 464 — PART 464—METAL MOLDING AND CASTING POINT SOURCE CATEGORY · eCFR as of 2026-10-05 · United States (US) · 2,916 rows · source
  52. 40 CFR Part 465 — PART 465—COIL COATING POINT SOURCE CATEGORY · eCFR as of 2026-10-05 · United States (US) · 148 rows · source
  53. 40 CFR Part 466 — PART 466—PORCELAIN ENAMELING POINT SOURCE CATEGORY · eCFR as of 2026-10-05 · United States (US) · 379 rows · source
  54. 40 CFR Part 467 — PART 467—ALUMINUM FORMING POINT SOURCE CATEGORY · eCFR as of 2026-10-05 · United States (US) · 2,018 rows · source
  55. 40 CFR Part 468 — PART 468—COPPER FORMING POINT SOURCE CATEGORY · eCFR as of 2026-10-05 · United States (US) · 1,155 rows · source
  56. 40 CFR Part 469 — PART 469—ELECTRICAL AND ELECTRONIC COMPONENTS POINT SOURCE CATEGORY · eCFR as of 2026-10-05 · United States (US) · 97 rows · source
  57. 40 CFR Part 471 — PART 471—NONFERROUS METALS FORMING AND METAL POWDERS POINT SOURCE CATEGORY · eCFR as of 2026-10-05 · United States (US) · 6,545 rows · source
  58. 40 CFR 52.21 — Prevention of significant deterioration of air quality · eCFR 2026-08-01 (versioner API) · United States (US) · 7 rows · source
  59. 40 CFR 63.2 — Definitions (major source of hazardous air pollutants) · eCFR 2026-08-01 (versioner API) · United States (US) · 2 rows · source
  60. 40 CFR Part 50, National Primary and Secondary Ambient Air Quality Standards, §§ 50.4–50.21 (eCFR as of 2026-08-01) · 90 FR 4651, Jan. 16, 2025 · United States (US) · 21 rows · source
  61. 40 CFR Part 141 — National Primary Drinking Water Regulations (eCFR, as of 2026-08-01) · eCFR as of 2026-08-01 · United States (US) · 161 rows · source
  62. EPA National Recommended Water Quality Criteria — Aquatic Life Criteria Table (freshwater and saltwater CMC/CCC) · EPA web table, last updated on June 9, 2026 (fetched 2026-10-09); each criterion carries its publication year · United States (US) · 156 rows · source
  63. EPA National Recommended Water Quality Criteria — Human Health Criteria Table (water + organism, organism only) · EPA web table (fetched 2026-10-09); each criterion carries its publication year · United States (US) · 336 rows · source
  64. 40 CFR Part 143 — National Secondary Drinking Water Regulations (eCFR, as of 2026-08-01) · eCFR as of 2026-08-01 · United States (US) · 15 rows · source
  65. US EPA — Regional Screening Levels (RSLs), Summary Table (TR=1E-06, THQ=1.0), November 2024 — Soil · November 2024 · United States (US) · 2,565 rows · source
  66. US EPA — Regional Screening Levels (RSLs), Summary Table (TR=1E-06, THQ=1.0), November 2024 — Tap Water · November 2024 · United States (US) · 850 rows · source

Read from public law and public agency files. A row missing here is missing from our sources, not from the law of the place. Check the cited source before relying on a value.