| #Q001 | operational | operational | mandatory | Leachate Collection Requirement | wastewater | RCRA regulations require landfill operators to collect the leachate produced by the landfill. | | high |
| #Q002 | administrative | operational | mandatory | Applicability of Effluent Guidelines | wastewater | Landfills discharging directly to surface waters are subject to the Effluent Guidelines regulation. | Discharging directly to surface waters | high |
| #Q003 | treatment | treatment | mandatory | Technology Selection and Effluent Limits | wastewater | Landfill operators may choose the technologies best suited for their sites so long as the wastewater discharged from their facilities meet the effluent limits set by the regulation. | | high |
| #Q004 | administrative | operational | mandatory | MP&M Regulation Coverage | wastewater | The MP&M regulation covers only direct dischargers and the requirements are incorporated into NPDES permits. | Direct dischargers manufacturing, rebuilding, or maintaining finished metal products, parts, or machines | high |
| #Q005 | administrative | operational | mandatory | Oily Wastes Subcategory Applicability | wastewater | The MP&M effluent limitations apply only to facilities that directly discharge wastewater from oily operations in the Oily Wastes subcategory. | Facilities in the Oily Wastes subcategory with direct discharge | high |
| #Q006 | treatment | treatment | mandatory | Best Practicable Control Technology (BPT) Basis | wastewater | The regulation sets daily maximum limits for two pollutants... based on the best practicable control technology (BPT) : 1. In-process flow control and pollution prevention 2. Oil-water separation by chemical emulsion breaking and skimming | | high |
| #Q007 | administrative | operational | mandatory | Industrial Sector Performance Standards | wastewater | the regulation sets performance standards for facilities in these industrial sectors: Aerospace; Aircraft; Bus and Truck; Electronic Equipment; Hardware; Household Equipment; Instruments; Mobile Industrial Equipment; Motor Vehicle; Office Machine; Ordnance; Precious Metals and Jewelry; Railroad; Ships and Boats; Stationary Industrial Equipment; Miscellaneous Metal Products | Facilities operating in the listed industrial sectors | high |
| #Q008 | administrative | operational | mandatory | Government Facility Coverage | wastewater | Examples of federal, state, and local government facilities that fall under this rule are a town that operates its own bus, truck, and/or snow removal equipment maintenance facility or a U.S. military base. | Government facilities operating maintenance for bus, truck, or snow removal equipment | high |
| #Q009 | administrative | reporting | mandatory | NPDES Permit Incorporation (Direct Dischargers) | wastewater | The NFMM Effluent Guidelines and Standards are incorporated into NPDES permits for direct dischargers. | Direct dischargers (point source that discharges pollutants to waters of the United States) | high |
| #Q010 | administrative | reporting | mandatory | Control Mechanism Incorporation (Indirect Dischargers) | wastewater | The NFMM Effluent Guidelines and Standards are incorporated into permits or other control mechanisms for indirect dischargers. | Indirect dischargers (facility that discharges pollutants to a publicly owned treatment works) | high |
| #Q011 | administrative | operational | mandatory | Compliance Coverage Definition Requirement | wastewater | For precise definitions of coverage, see the applicability sections in 40 CFR Part 421. | When determining regulatory coverage beyond NAICS guide | high |
| #Q012 | administrative | operational | mandatory | Subcategory-Specific Application | wastewater | The NFMM effluent guidelines apply to facilities in 31 subcategories | Facilities falling under subparts A through AE | high |
| #Q013 | administrative | operational | mandatory | Precise Coverage Definition Requirement | wastewater | For precise definitions of coverage, see the applicability sections in 40 CFR Part 421. | When determining regulatory coverage (NAICS listing is only a guide) | high |
| #Q014 | administrative | operational | guidance | Post-Extraction Process Coverage Reference | wastewater | Many post-extraction processes such as rolling, drawing, extruding and foil fabrication are covered by the Nonferrous Metals Forming and Metal Powders Category, (40 CFR Part 471), the Aluminum Forming Category (40 CFR Part 467), and the Copper Forming Category (40 CFR Part 468). | Post-extraction processes like rolling, drawing, extruding, or foil fabrication | high |
| #Q015 | operational | operational | mandatory | Part 503 Compliance Requirement | wastewater | 40 CFR Part 503 is a self-implementing rule. This means that the requirements of Part 503 must be met even if a permit has not been issued. | Applies even if a permit has not been issued | high |
| #Q016 | reporting | reporting | mandatory | Annual Biosolids Reporting | wastewater | Certain treatment works specified by Part 503 are required to submit an annual report on biosolids treatment and management practices to their permitting authority by February 19 of each year. | Applicable to certain treatment works specified by Part 503 | high |
| #Q017 | administrative | operational | mandatory | Part 503 Applicability Scope | wastewater | 40 CFR Part 503 applies to any person or treatment works that prepares sewage sludge, applies sewage sludge to the land, fires sewage sludge in an incinerator, and the owners and operators of surface disposal sites. | | high |
| #Q018 | operational | operational | mandatory | SSI Clean Air Act Compliance | wastewater | SSIs must also comply with CAA requirements. | Applicable to sewage sludge incinerators (SSIs) | high |
| #Q019 | prohibition | operational | mandatory | RCRA Landfill Regulation | wastewater | Disposal of sewage sludge in a municipal waste landfill (MSW) is regulated under the Resource Conservation and Recovery Act. | Applies when disposing of sewage sludge in MSW landfills | high |
| #Q020 | administrative | reporting | mandatory | NPDES Permit Incorporation | wastewater | The Effluent Guidelines and Standards are incorporated into NPDES permits for direct dischargers | Applies to direct dischargers (point source that discharges pollutants to waters of the United States) | high |
| #Q021 | administrative | reporting | mandatory | Indirect Discharger Control Mechanisms | wastewater | The Effluent Guidelines and Standards are incorporated into permits or other control mechanisms for indirect dischargers | Applies to indirect dischargers (facility that discharges pollutants to a publicly owned treatment works) | high |
| #Q022 | administrative | operational | mandatory | Subcategory Applicability | wastewater | The Pesticide Chemicals regulation applies to the following subcategories: Organic Pesticide Chemicals Manufacturing (Subpart A), Metallo-Organic Pesticide Chemicals Manufacturing (Subpart B), Pesticide Chemicals Formulating and Packaging (Subpart C), Test Methods for Pesticide Pollutants (Subpart D), Repackaging of Agricultural Pesticides Performed at Refilling Establishments (Subpart E) | | high |
| #Q023 | monitoring | reporting | mandatory | Use of Approved Analytical Methods | wastewater | Subpart D provides references to analytical methods. | Applicable for pesticide pollutant testing and monitoring | high |