| #Q001 | administrative | operational | mandatory | Permit Incorporation | wastewater | The Effluent Guidelines and Standards are incorporated into NPDES permits for direct dischargers, and permits or other control mechanisms for indirect dischargers | Applies to direct and indirect dischargers. | high |
| #Q002 | administrative | operational | guidance | Coverage Definition Verification | wastewater | Note: the NAICS listing is provided as a guide and does not define the coverage of the Copper Forming category. For precise definitions of coverage, see the applicability sections in 40 CFR Part 468. | When determining categorical coverage | high |
| #Q003 | administrative | operational | mandatory | Facility Coverage Exclusions | wastewater | Excluded:
* Forming of beryllium copper alloys (any copper alloy that is alloyed to contain 0.10 percent or greater beryllium)
* Forming of precious metals (any alloy containing 30 or greater percent by weight of precious metals is considered a precious metal)
* Casting of copper and copper alloys
* Copper powders | Applies to facilities forming or manufacturing the specified excluded materials. | high |
| #Q004 | administrative | operational | mandatory | Casting Regulation Applicability | wastewater | Casting is regulated under the Metal Molding and Casting (Foundries) Category (40 CFR Part 464). | Applies to casting processes. | high |
| #Q005 | administrative | operational | mandatory | Copper Powders Regulation Applicability | wastewater | The manufacture of copper powders and the forming of parts from copper or copper alloy powders is regulated under the Nonferrous Metals Forming and Metal Powders Category (40 CFR Part 471). | Applies to the manufacture and forming of copper powders. | high |
| #Q006 | administrative | operational | mandatory | Direct Discharger Applicability | wastewater | The regulation only applies to direct dischargers. | | high |
| #Q007 | administrative | operational | mandatory | NPDES Permit Incorporation | wastewater | The Effluent Guidelines are incorporated into NPDES permits. | | high |
| #Q008 | administrative | operational | mandatory | Coverage Definition Reference | wastewater | For precise definitions of coverage, see the applicability sections in 40 CFR Part 457. | | high |
| #Q009 | administrative | operational | guidance | NAICS Guide Usage | wastewater | The NAICS listing is provided as a guide and does not define the coverage of the Explosives Manufacturing category. | | high |
| #Q010 | administrative | operational | mandatory | Acid Waste Regulation Subordination | wastewater | The wastes associated with this portion of explosives manufacturing are addressed in other Effluent Guidelines categories. | manufacture, concentration, recovery, and purification of sulfuric, nitric, acetic, and other acids | high |
| #Q011 | administrative | operational | mandatory | Permit and Control Mechanism Incorporation | wastewater | The Effluent Guidelines and Standards are incorporated into NPDES permits for direct dischargers, and permits or other control mechanisms for indirect dischargers (See Pretreatment Program). | Applies to direct and indirect dischargers in the Ferroalloy Manufacturing industry. | high |
| #Q012 | administrative | reporting | mandatory | Applicability Definition Requirement | wastewater | For precise definitions of coverage, see the applicability sections in 40 CFR Part 424. | When determining regulatory coverage and applicability for the Ferroalloy Manufacturing category. | high |
| #Q013 | administrative | reporting | mandatory | Regulatory Coverage Verification | wastewater | For precise definitions of coverage, see the applicability sections in 40 CFR Part 424. | Applies when determining if a facility falls under the Ferroalloy Manufacturing category. | high |
| #Q014 | administrative | reporting | guidance | NAICS Listing Interpretation | wastewater | The NAICS listing is provided as a guide and does not define the coverage of the Ferroalloy Manufacturing category. | | high |
| #Q015 | administrative | operational | mandatory | Direct Discharger Regulatory Coverage | wastewater | The regulation (40 CFR Part 432) covers wastewater directly discharged by slaughterhouses, further processors, independent renderers, and poultry processors. | Directly discharged to waters of the United States | high |
| #Q016 | administrative | unknown | mandatory | Existing and New Source Applicability Thresholds | wastewater | Coverage applies to: All meat first processors (slaughterhouses); Meat further processors generating > 6,000 lbs/day finished products; Independent renderers using > 10 million lbs/year raw material; Poultry first processors slaughtering > 100 million lbs/year; Poultry further processors generating > 7 million lbs/year finished products. | For Direct Dischargers—Existing and New Sources | high |
| #Q017 | administrative | unknown | mandatory | New Source Specific Applicability | wastewater | Direct Dischargers—New Sources include: All poultry first processors; All poultry further processors. | Applies to New Sources as defined by regulation | high |
| #Q018 | administrative | operational | mandatory | Regulation Coverage and Permit Incorporation | wastewater | The regulation (40 CFR Part 432) covers wastewater directly discharged directly dischargedA point source that discharges pollutants to waters of the United States, such as streams, lakes, or oceans. by slaughterhouses, further processors, independent renderers, and poultry processors. The requirements are incorporated into NPDES permits. | Applies to direct dischargers in the Meat and Poultry Products industry. | high |
| #Q019 | administrative | unknown | mandatory | Coverage Thresholds for Existing and New Sources | wastewater | All meat first processors (slaughterhouses); Meat further processors that generate more than 6,000 pounds per day of finished products (examples: bacon or sausage); Independent renderers of meat and poultry products that use more than 10 million pounds per year of raw material; Poultry first processors (slaughterhouses) that slaughter more than 100 million pounds per year; Poultry further processors that generate more than 7 million pounds per year of finished products (examples: ready-to-cook chicken cutlets or ground turkey) | Applicable to Direct Dischargers—Existing and New Sources | high |
| #Q020 | administrative | unknown | mandatory | Poultry New Source Coverage | wastewater | All poultry first processors; All poultry further processors | Applicable specifically to Direct Dischargers—New Sources | high |
| #Q021 | administrative | operational | guidance | POTW Standard Election | wastewater | For indirect dischargers, which is the larger number of plants, POTWs may elect to establish mass-based or concentration-based standards based on the limitations or standards established in the regulations. | Applies to indirect dischargers and the overseeing POTW. | high |
| #Q022 | administrative | operational | mandatory | Applicability Overlap Assessment | wastewater | Special care needs to be given to potential for overlap of applicability to Metal Molding and Casting facilities with other categories, such as Metal Finishing (note particularly the presence or absence of six "core operations" that must be present for operations to be covered by the Metal Finishing regulations (40 CFR Part 433)), Aluminum Forming (40 CFR Part 467), and Copper Forming (40 CFR Part 468). | Applies when determining the regulatory coverage of a facility. | high |
| #Q023 | administrative | reporting | guidance | MMC Development Document Review | wastewater | Please review the MMC Development Document regarding process operations and associated wastewaters covered in each subcategory (Sections 3 and 5) and the Appendices, notably Appendix C. | Applies when identifying subcategory-specific process operations and wastewaters. | high |
| #Q024 | prohibition | treatment | mandatory | Zero Discharge Prohibition | wastewater | For three of the process segments, the technology basis of the regulations is "no discharge of process wastewater pollutants." | Applies to the specific process segments identified in the regulation as zero-discharge. | high |
| #Q025 | monitoring | reporting | mandatory | TTO Monitoring for Indirect Dischargers | wastewater | ...a bulk parameter (oil and grease) for monitoring total toxic organics (TTO) in all subcategories for indirect dischargers (see 40 CFR 464.03(a)). | Applies to indirect dischargers in all subcategories. | high |