| #Q001 | prohibition | unknown | mandatory | Zero Discharge Requirement | wastewater | Subpart A has a zero discharge requirement. | Applies to Regulation Subcategory: Char and Charcoal Briquets (Subpart A) | high |
| #Q002 | administrative | reporting | mandatory | Effluent Guidelines 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 within the NFMF Category | high |
| #Q003 | administrative | reporting | mandatory | Exclusion from Electroplating and Metal Finishing Regulation | wastewater | Wastewater discharges covered by the NFMF category are not subject to the Electroplating Category (40 CFR Part 413) or the Metal Finishing Category (40 CFR Part 433). | Applies to surface treatment performed at the same plant site at which nonferrous metals are formed | high |
| #Q004 | administrative | operational | mandatory | Lead Battery Case Dual Regulation | wastewater | Casting of lead which is subsequently rolled and fabricated into battery cases is regulated under both NFMF and the Battery Manufacturing Category (40 CFR Part 461). | Applies to lead casting for battery cases | high |
| #Q005 | administrative | unknown | mandatory | Alloy Type Determination Rule | wastewater | Alloys are considered as only one metal type. The metal type of any particular alloy is defined to be the metal that is the major component in percent by weight except for precious metals (silver, gold, platinum, and palladium) and beryllium. | Applicable to all metal alloys within NFMF scope | high |
| #Q006 | administrative | unknown | mandatory | Precious Metal Alloy Classification Threshold | wastewater | Any alloy containing 30 or greater percent by weight of precious metals is considered a precious metal alloy. | Applicable to alloys containing silver, gold, platinum, or palladium | high |
| #Q007 | administrative | unknown | mandatory | Beryllium Alloy Classification Threshold | wastewater | Beryllium alloys are any alloy in which beryllium is present at 0.1 percent or greater by weight. | | high |
| #Q008 | administrative | unknown | mandatory | NFMF Category Alloy Exclusion Rule | wastewater | Alloys for which iron, copper, or aluminum is greater than 50 percent by weight (except precious metals) are not included in the category of nonferrous metal alloys. | | high |
| #Q009 | administrative | unknown | mandatory | Casting Process Inclusion Criteria | wastewater | Casting of nonferrous metals is included in the NFMF category when it is performed as an integral part of the nonferrous metals forming process and located at the same plant site at which nonferrous metals are formed. | Includes shot-casting and casting of billets, ingots, bars, and strip subsequently formed on-site | high |
| #Q010 | administrative | unknown | mandatory | Surface Treatment Integration Rule | wastewater | This process [Surface treatment of nonferrous metals] is considered to be an integral part of the NFMF category whenever it is performed at the same plant site at which nonferrous metals are formed. | Includes chemical or electrochemical treatment applied to the surface | high |
| #Q011 | administrative | unknown | mandatory | NFMF Regulation Scoping Exclusions | wastewater | Not covered by the NFMF regulation: The production of metal powders by chemical means, such as precipitation; The production of metal powder as the final step in refining metal; Forming of the metals beryllium, cadmium, chromium, gallium, germanium, indium, lithium, manganese, neodymium, or praseodymium. | | high |
| #Q012 | administrative | unknown | mandatory | Subcategory A Applicability | wastewater | Lead-Tin-Bismuth Forming (Subpart A) | Corrects hallucinated entry #Q001 which referred to Charcoal Briquets | high |
| #Q013 | administrative | unknown | mandatory | Iron, Copper, and Aluminum Metal Powder Scope | wastewater | Iron, copper, and aluminum powder manufacturing and forming of parts from metal powders including milling, abrading, and atomizing, as well as any associated ancillary operations listed above are covered under the NFMF Category. | | high |
| #Q014 | administrative | unknown | mandatory | Smelting and Refining Regulatory Path | wastewater | Casting which is an integral part of a nonferrous metals smelting and refining operation is included in the Nonferrous Metals Manufacturing Category (40 CFR Part 421) as is the production of metal powder as the final step in refining metal. | | high |
| #Q015 | administrative | unknown | mandatory | Casting of Parts Exclusion | wastewater | Casting of parts is included in the Metal Molding and Casting Category (Foundries) (40 CFR Part 464). | | high |
| #Q016 | administrative | operational | mandatory | Siting Process Considerations | wastewater, other | Throughout the siting process, the following must be considered: Characteristics of the existing right-of-way conditions; Impacts to existing, protected trees; Characteristics and performance of the existing drainage system; Potential extent of area to be managed by the GI; Location specific water quality and quantity goals; Integration within existing or planned streetscape; Future maintenance requirements; Minimization of lifecycle costs. | During the green infrastructure siting process | high |
| #Q017 | monitoring | operational | mandatory | Pre-design Site Investigation | wastewater, other | The following information must be collected at the site before or during preliminary design to confirm the appropriate GI system(s) has been selected: Geotechnical Assessment; Hydrologic Assessment; Microclimatic Assessment; Road, Boulevard Reconstruction or Modification [site assessment]. | Before or during preliminary design | high |
| #Q018 | design | operational | mandatory | Building Setbacks for Infiltration | other | Infiltration-based GI systems shall be set back from buildings a minimum of 4 m unless impermeable liners are installed, or the building foundation has been waterproofed with liners or membranes and the proposed GI system has been agreed with the owner of the adjacent structure. | Applies to infiltration-based systems near building foundations | high |
| #Q019 | design | treatment | mandatory | Stormwater System Integration | wastewater, other | Green infrastructure systems in the right-of-way shall be an integrated part of a proposed or existing stormwater management system. | | high |
| #Q020 | design | treatment | mandatory | Inlet Grate Specifications | other | All grates shall be non-slip and non-bolted. | Applicable to grated inlets | high |
| #Q021 | design | operational | mandatory | Inlet Energy Dissipation | other | All inlets into GI systems require an energy dissipation mechanism in the form of a sediment pad or rip-rap. | | high |
| #Q022 | design | operational | mandatory | Infiltration Feasibility Criteria | other | Should a GI system be sited at a location where the above criteria [bedrock depth, water table depth, infiltration rate, soil contaminants] are not met, the system will require an underdrain or impermeable membrane liner. | Criteria: bottom > 1m from bedrock; bottom > 1m from water table; native soil infiltration > 15mm/hr; soil free of contaminants. | high |
| #Q023 | prohibition | operational | recommended | Winter Sanding Prohibition | other | Winter sanding operations should be prohibited where permeable pavement systems are specified. | Permeable pavement installations | high |
| #Q024 | design | operational | mandatory | AODA Minimum Clearway | other | The Accessibility for Ontarians with Disabilities Act (AODA) requires a minimum clearway of 1.5 m. A clearway means that the area must be kept free of sidewalk signs, patios, mailboxes, street furniture, and GI if installed within the boulevard. City requires a pedestrian clearway of 2.1 m. | Construction and placement of GI within the boulevard | high |
| #Q025 | administrative | operational | mandatory | Utility Clearance Compliance | other | For GI systems, the clearances to the utilities shall comply with the specified requirements in Municipal Consent Requirements (MCR) document. | All GI installations in the right-of-way | high |
| #Q026 | administrative | reporting | mandatory | OCPSF Effluent Guidelines Permit Incorporation | wastewater | The OCPSF Effluent Guidelines and Standards are incorporated into NPDES permits for direct dischargers and permits or other control mechanisms for indirect dischargers. | Applies to direct dischargers (point source to US waters) and indirect dischargers (discharges to POTW) | high |
| #Q027 | administrative | unknown | mandatory | OCPSF Regulation Applicability | wastewater | The OCPSF regulation applies to process wastewater discharges resulting from the manufacture of the products or product groups listed in the rayon fibers, other fibers, thermoplastic resins, thermosetting resins, commodity organic chemicals, bulk organic chemicals, and specialty organic chemicals subcategories. | Applies to listed SIC groups including 2821, 2823, 2824, 2865, and 2869 | high |
| #Q028 | monitoring | operational | mandatory | BOD and TSS Determination Methodology | wastewater | Specifies the method of determining BOD and TSS limitations for plants that manufacture products in more than one subcategory. | Applicable to multi-subcategory manufacturing plants | high |
| #Q029 | administrative | unknown | mandatory | PFAS Manufacturer Regulation | wastewater | Both PFAS manufacturers and formulators are currently regulated under the OCPSF category. | Includes facilities producing PFAS products/materials from feedstocks | high |
| #Q030 | operational | treatment | guidance | Alternative Cyanide Limitations | wastewater | Alternative cyanide limitations for unavoidable complexing of cyanide at the process source of cyanide-bearing waste streams. | Applicable when unavoidable complexing of cyanide occurs at the process source | high |
| #Q031 | administrative | operational | guidance | Background Metal Accommodation | wastewater | Allows control authorities to accommodate low background levels of metals in non-metal-bearing waste streams that result from the corrosion of construction materials, intake water, or other incidental metal sources. | Non-metal-bearing waste streams with incidental metal sources | high |
| #Q032 | administrative | unknown | mandatory | Waste Stream Designation Criteria | wastewater | Revised criteria for designating "metal-bearing" and "cyanide-bearing" waste streams. | Applies to designation of OCPSF waste streams for regulatory compliance | high |