Under section 25(b) of the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA), EPA has determined that certain "minimum risk pesticides" pose little to no risk to human health or the environment, and has exempted them from registration and other requirements under FIFRA. In 1996, EPA created a regulatory list of minimum risk active and inert ingredients in 40 CFR 152.25. Such an exemption reduces the cost and regulatory burdens on businesses and the public for those pesticides deemed to pose little or no risk, and allows EPA to focus our resources on pesticides that pose greater risk to humans and the environment. In April 2021, EPA issued an advance notice of proposed rulemaking (ANPRM) soliciting public comments and suggestions about the petition process for exemptions regarding pesticides from registration and other requirements under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA), where the pesticides are determined to be of a character unnecessary to be subject to regulation under FIFRA. The Agency is considering streamlining the petition process and revisions to how the Agency evaluates the potential minimum risk active and inert substances, factors used in classes of exemptions, state implementation of the minimum risk program and the need for any future exemptions or modifications to current exemptions. EPA is also sought comment on whether the Agency should consider amending existing exemptions or adding new classes of pesticidal substances for exemption, such as peat when used in septic filtration systems. EPA is currently considering the public input received and development of a proposed rule.