Regulatory Flexibility Act (RFA)

The Regulatory Flexibility Act of 1980, as amended by the Small Business Regulatory Enforcement Fairness Act (SBREFA) of 1996, requires federal agencies engaged in APA rulemaking to consider the impact of their regulations on small businesses, small nonprofits, and small governments — and to explore less burdensome alternatives when regulations would significantly affect a substantial number of these small entities. The RFA is the primary legal mechanism ensuring that federal rulemaking doesn't disproportionately burden the small entities that make up over 99% of American businesses.

Current Law (2026)

Legal Authority

• 5 U.S.C. § 601 — Definitions (defines small business, small organization, and small governmental jurisdiction for RFA purposes)
• 5 U.S.C. § 602 — Regulatory agenda (agencies must publish semiannual regulatory flexibility agendas identifying rules expected to affect small entities)
• 5 U.S.C. § 603 — Initial regulatory flexibility analysis (when proposing a rule, agencies must analyze the rule's impact on small entities, describe alternatives, and estimate the number of small entities affected)
• 5 U.S.C. § 604 — Final regulatory flexibility analysis (when finalizing a rule, agencies must summarize issues raised by comments, describe changes made, and detail the final rule's impact on small entities)
• 5 U.S.C. § 609 — Procedures for gathering comments (agencies must give small entities a meaningful opportunity to participate in rulemaking that significantly affects them; SBREFA panels required for EPA and OSHA rules)
• 5 U.S.C. § 610 — Periodic review of rules (agencies must review existing rules that significantly affect small entities within 10 years of publication)
• 5 U.S.C. § 611 — Judicial review (SBREFA amendment: allows small entities to challenge agency compliance with §§ 601–612 in court)

How It Works

The RFA operates through a structured analysis requirement. When an agency proposes a regulation that could affect small entities, it must prepare an initial regulatory flexibility analysis (IRFA) examining the rule's impact. The IRFA must describe the reasons for the rule, estimate the number and types of small entities affected, project compliance costs, identify overlapping federal rules, and describe significant alternatives that would reduce the burden on small entities — such as simpler compliance methods, exemptions, performance standards instead of prescriptive requirements, or longer compliance timelines.

When the agency finalizes the rule, it must prepare a final regulatory flexibility analysis (FRFA) responding to public comments, describing changes made to reduce small entity impact, and providing the final assessment of impact. If the agency head certifies that a rule will not have a "significant economic impact on a substantial number of small entities," the full analysis can be waived — but this certification must be published and is subject to judicial review.

The SBREFA amendments of 1996 added three critical teeth. First, judicial review: before SBREFA, agencies' RFA compliance was essentially voluntary because courts couldn't enforce it. Now small entities can challenge noncompliance. Second, SBREFA panels: for EPA and OSHA regulations expected to significantly affect small entities, special review panels including SBA's Chief Counsel for Advocacy, OMB's OIRA, and the rulemaking agency must convene to gather input from small entity representatives before the rule is even proposed. Third, congressional review: SBREFA also created the Congressional Review Act mechanism for Congress to disapprove major rules.

The SBA Office of Advocacy plays a watchdog role — monitoring agencies' RFA compliance, filing comments on proposed rules, and publishing annual reports on the regulatory burden on small businesses.

How It Affects You

If you own or run a small business and a federal agency is proposing rules affecting your industry: The RFA gives you specific procedural rights in the rulemaking process. When an agency publishes a proposed rule in the Federal Register that will significantly affect a substantial number of small entities, it must include an Initial Regulatory Flexibility Analysis (IRFA) describing the rule's impact on small businesses, the estimated number and types of small entities affected, projected compliance costs, and significant alternatives that would reduce the burden — exemptions for the smallest businesses, tiered requirements based on size, performance standards instead of prescriptive design requirements, or longer compliance timelines. You have the right to comment on whether the IRFA adequately captures your situation and whether the alternatives are meaningful. For EPA and OSHA rules expected to significantly affect small entities, the SBREFA panel process is even more important: before the rule is proposed, a panel including SBA's Chief Counsel for Advocacy, OIRA, and the agency must convene small business representatives to gather direct input. If your industry is covered by an upcoming EPA or OSHA rulemaking, contact the SBA Office of Advocacy (advocacy.sba.gov) — they actively solicit input and participate in agency rulemaking as a structural check on disproportionate burdens. Under 5 U.S.C. § 611, you can sue in federal court to challenge an agency's failure to comply with RFA requirements, and courts have vacated rules with inadequate small entity analysis.

If you're a federal agency official managing a rulemaking that might affect small businesses: RFA compliance is a procedural requirement that, if inadequate, creates real litigation risk. The § 605(b) certification — the agency head's declaration that a rule won't have a significant economic impact on a substantial number of small entities — must be genuine and documented; courts have reviewed certifications and found them inadequate when the supporting analysis was thin. Even if you certify, publish the reasons. For rules that clearly do affect small entities: the IRFA and FRFA must be substantive analyses, not box-checking exercises. Include realistic cost estimates disaggregated by firm size, not just averages. Identify and genuinely evaluate alternatives — an analysis that presents alternatives only to dismiss them without explanation won't survive scrutiny. For EPA and OSHA rules: the SBREFA panel process adds approximately 4-6 months to your rulemaking timeline. Plan for it early and treat panel feedback seriously — many significant regulatory modifications have come from SBREFA panel processes, and panels that produce genuine input make the final rule more defensible. The SBA Office of Advocacy will monitor your rule and may file comment letters highlighting small business impacts — engage with them early.

If you're in a small local government, county, or municipality under 50,000 population facing federal rulemaking: The RFA extends to you as a "small governmental jurisdiction" (population under 50,000). Agencies must consider whether rules will significantly burden small governments — which often lack the administrative capacity that larger jurisdictions have for compliance. The Unfunded Mandates Reform Act (UMRA) is a companion statute requiring agencies to assess federal mandates over $100 million on state, local, and tribal governments and consider whether federal funding will be provided. Paperwork burdens that flow from the rule trigger parallel review under the Paperwork Reduction Act. If you're being hit with compliance requirements that would strain your budget (EPA drinking water rules, OSHA workplace safety standards, accessibility requirements), document your costs and submit comments in the rulemaking. The IRFA process should include small government cost estimates — if it doesn't, that's a deficiency you can flag. Trade associations representing small municipalities (National League of Cities, National Association of Counties) actively monitor RFA compliance on behalf of members.

If you're an industry trade association, regulatory attorney, or policy advocate: The SBREFA judicial review provision is an increasingly powerful tool for challenging agency rules. Courts have vacated rules from EPA, OSHA, and other agencies for failure to conduct adequate regulatory flexibility analyses — the analysis must genuinely consider alternatives, not just list and dismiss them. Build your regulatory monitoring practice around early SBREFA engagement: participate in SBREFA panels when your industry is affected (agencies must notify SBA, which recruits small business representatives), submit detailed IRFA comments when rules are proposed, and preserve the administrative record for potential judicial review. The deregulatory environment since 2025 has raised a new question: does the RFA's analysis requirement apply to rules being rescinded? The same analytical discipline that governs new regulations logically applies to eliminating them — a rule repeal that imposes transition costs on small businesses may itself warrant RFA analysis, though this area of law is underdeveloped.

State Variations

The RFA is federal law governing federal rulemaking. Many states have adopted their own versions:

• Over 40 states have some form of small business regulatory review requirement
• State approaches vary from advisory (agency should consider impacts) to mandatory (analysis required, subject to review)
• Some states require regulatory impact analyses for all businesses, not just small entities
• The Unfunded Mandates Reform Act (a related federal law) addresses federal mandates on state and local governments

Implementing Regulations

The RFA (5 U.S.C. §§ 601–612) requires agencies to perform regulatory flexibility analyses but has no CFR implementing regulations of its own. SBA's Office of Advocacy monitors compliance. 13 CFR Part 121 (size standards) determines which entities qualify as "small entities" for RFA purposes.

Pending Legislation

No standalone Regulatory Flexibility Act reform bills pending in the 119th Congress. Regulatory reform proposals are tracked under Administrative Procedure Act.

Recent Developments

The RFA has gained renewed attention as agencies implement major legislation (Infrastructure Act, IRA, CHIPS Act) through rulemaking that affects millions of small businesses. Courts have increasingly used the SBREFA judicial review provision to vacate rules with inadequate small entity analysis. The SBA Office of Advocacy has expanded its monitoring role and published reports finding that per-employee regulatory costs fall disproportionately on the smallest businesses. Proposals to expand SBREFA panel requirements beyond EPA and OSHA to all major rulemaking agencies have been debated but not enacted.

In February 2026, the Trump administration touted "the biggest regulatory relief in history," with the American Consumer Institute praising the rescission of energy regulations as reducing consumer costs — part of a broader deregulatory push affecting environmental, energy, and financial rules. The initiative has particular significance for RFA compliance, as sweeping rescissions bypass the rulemaking process that triggers RFA analysis, raising questions about whether small business impact reviews apply to deregulatory actions.