40 CFR § 1505.3 - Implementing the decision.
(a) In addition to the requirements of paragraph (c) of this section, agencies may provide for monitoring to assure that their decisions are carried out and should do so in important cases. Mitigation (§ 1505.2(c)) and other conditions established in the environmental impact statement or during its review and committed as part of the decision shall be implemented by the lead agency or other appropriate consenting agency. The agency shall:
(1) Include appropriate conditions in grants, permits, or other approvals; and
(2) Condition funding of actions on mitigation.
(b) The lead or cooperating agency should, where relevant and appropriate, incorporate into its decision mitigation measures that address or ameliorate significant human health and environmental effects of proposed Federal actions that disproportionately and adversely affect communities with environmental justice concerns.
(c) The lead or cooperating agency shall prepare and publish a monitoring and compliance plan for mitigation when:
(1) The analysis of the reasonably foreseeable effects of a proposed action in an environmental assessment or environmental impact statement is based on implementation of mitigation; and
(2) The agency incorporates the mitigation into a record of decision, finding of no significant impact, or separate decision document.
(d) The agency should tailor the contents of a monitoring and compliance plan required by paragraph (c) of this section to the complexity of the mitigation committed to and include:
(1) A basic description of the mitigation measure or measures;
(2) The parties responsible for monitoring and implementing the mitigation;
(3) If appropriate, how monitoring information will be made publicly available;
(4) The anticipated timeframe for implementing and completing mitigation;
(5) The standards for determining compliance with the mitigation and the consequences of non-compliance; and
(6) How the mitigation will be funded.
(e) If an action is incomplete or ongoing, an agency does not need to supplement its environmental impact statement (§ 1502.9(d) of this subchapter) or environmental assessment (§ 1501.5 of this subchapter) or revise its record of decision or finding of no significant impact or separate decision document based solely on new information developed through a monitoring and compliance plan required by paragraph (c) of this section. The ongoing implementation of a monitoring and compliance plan shall not be considered an incomplete or ongoing Federal action.