Operators of gas, hazardous liquid, and carbon dioxide pipeline facilities, liquefied natural gas (LNG) plants, and underground natural gas storage facilities must randomly select and test a percentage of all covered employees for prohibited drug use in accordance with 49 Code of Federal Regulations (CFR) part 199. The Administrator can adjust this random drug testing rate based on the reported positive rate in the industry’s random drug tests, which is submitted in operators’ annual MIS reports as required by § 199.119(a). In accordance with § 199.105(c)(3), if the reported positive drug test rate is below 1.0 percent for 2 consecutive calendar years, the Administrator can lower the random drug testing rate to 25 percent of all covered employees.
Pursuant to § 199.105(c)(3), the Administrator is lowering the PHMSA minimum annual random drug testing rate for all covered employees to 25 percent in the calendar year 2023 because the random drug test positive rate for the pipeline industry was reported at less than 1.0 percent in the consecutive calendar years of 2020 and 2021.
https://www.federalregister.gov/documents/2022/12/23/2022-27906/pipeline-safety-random-drug-testing-rate-management-information-system-reporting-and-obtaining-drug
