; 42 U.S.C. 18932 ) that establishes national facilities to advance methane detection, quantification, and relevant standards and supporting methods for testing and intercalibration of methane measurements and the publication and maintenance of standards for such measurements. (2) Responsibilities The facilities established under paragraph (1) shall facilitate detection and quantification of carbon, carbon isotopes, methane, ethane, and gases associated with such sources, provide high-resolution spectroscopic reference data advancing accuracy of remote sensing technologies, develop methods relating methane concentration observations to the associated emission fluxes, and facilitate the rapid performance testing of existing and new technologies for the measurement of methane emissions, including testing conditions with a wide range of the following: (A) Sizes and extents of emission sources. (B) Geographic diversity. (C) Temporal characteristics. (D) Diversity of atmospheric conditions, such as wind, rain, fog, clouds, and dust. (E) Diversity of observing platforms. (F) Quantification of atmospheric emission plumes. (3) Annual report Not later than two years after the date of the enactment of this Act and annually thereafter, the Secretary of Commerce shall submit to Congress a report summarizing the activities, findings, and progress of the program established under paragraph (1). (4) Authorization of appropriations There are authorized to be appropriated to the Secretary of Commerce to carry out this section the following: (A) $15,000,000 for fiscal year 2025. (B) $17,000,000 for fiscal year 2026. (C) $19,000,000 for fiscal year 2027. (D) $21,000,000 for fiscal year 2028. (E) $23,000,000 for fiscal year 2029 and each fiscal year thereafter.