33 CFR 230.15 : Navigation And Navigable Waters (§ 1.01-1 To Parts 404-499) — (Parts 200-202 To Parts 404-499) — Corps Of Engineers, Department Of The Army, Department Of Defense (Parts 200-202 To Parts 386-399) — Procedures For Implementing Nepa (§ 230.1 To Appendix C To Part 230) — Mitigation and monitoring.

See 40 CFR 1505.2(c) and 1505.3. District commanders shall, upon request from interested agencies or the public, provide reports on the progress and status of required mitigation and other provisions of their decisions on Corps projects. The term monitoring will be interpreted as that oversight activity necessary to ensure that the decision, including required mitigation measures, is implemented.