limits any otherwise-available immunity, privilege, or defense under any other provision of law. (d) Rulemaking Not later than 1 year after the date of enactment of the Community and Hydropwer Improvement Act , the Commission, after providing notice and an opportunity for public comment, shall promulgate regulations to implement the requirements of this section. . 16. Micro hydropower facilities Part I of the Federal Power Act ( 16 U.S.C. 792 et seq. ) (as amended by section 15) is amended by adding at the end the following: 40. Micro hydropower facilities (a) In general To improve the regulatory process and reduce delays and costs for new development of hydropower facilities with an installed capacity of 1,000 kilowatts or less (referred to in this section as micro hydropower facilities ), the Commission shall investigate— (1) opportunities to expand the use of micro hydropower facilities in the United States for purposes of— (A) capturing the electric generating potential of existing hydraulic processes without requiring the construction of any new dam or similar infrastructure