Section 654.1 - Purpose and scope(a) This part sets forth the operation and maintenance requirements pertaining to measures installed with Natural Resources Conservation Service (NRCS) assistance. This includes measures installed under the following programs:(1) Federal financially-assisted projects.(i) Watershed Protection and Flood Prevention (WP&FP). See part 622 of this title.(ii) Flood Prevention (FP). See part 623 of this title.(iii) Specifically authorized projects.(iv) Resource Conservation and Development (RC&D).(2) Conservation Operations (CO).(3) Emergency Watershed Protection (EWP). See part 624 of this title.(4) Great Plains Conservation Program (GP). See part 631 of this title.(b) These regulations shall apply to all Federal financially-assisted projects as set forth in subpart B for the duration of their respective operation and maintenance agreements. However, this does not relieve the sponsor(s) of any liability which may continue beyond the evaluated life of the measure under Federal, State, and local laws. Operation and maintenance agreements in effect prior to the effective date of these regulations are not affected by these regulations.