; (ii) measure methane concentrations in parts per billion; and (iii) collect data points at a rate of at least twice per second. (3) Regulations Not later than 1 year after the date of enactment of this subsection, the Secretary shall promulgate regulations to carry out this subsection. . (b) Methane emissions from pipelines (1) In general Chapter 601 of title 49, United States Code, is amended by adding at the end the following: 60142. Methane emissions from pipelines (a) In general To the maximum extent practicable, the owner or operator of a pipeline facility shall— (1) use the best available technology to capture natural gas when making repairs to the pipeline facility; (2) use the best available technology, including, as applicable, advanced leak detection technology described in section 60109(h)(2), to search for and identify leaks in the pipeline facility; (3) develop or participate in a replacement or repair program for pipeline facilities that— (A) are of a design, age, or material known to be leaky; or (B) are known to be leaky based on operating history; and (4) report to the Secretary any event that involves a release of gas from a pipeline facility that results in an unintentional estimated gas loss of 50,000 cubic feet or more. (b) Regulations Not later than 1 year after the date of enactment of this section, the Secretary shall promulgate regulations to carry out this section. . (2) Reporting threshold Not later than 90 days after the date of enactment of this Act, the Secretary of Transportation shall amend section 191.3 of title 49, Code of Federal Regulations, to ensure that the quantity of unintentional estimated gas loss necessary to be considered an incident under that section is 50,000 cubic feet or more. (3) Clerical amendment The table of sections for chapter 601 of title 49, United States Code, is amended by inserting after the item relating to section 60141 the following: 60142. Methane emissions from pipelines. .