{"data":{"id":"us/49-cfr-appendix-a-to-part-180","jurisdiction":"us","citation":"49 CFR Appendix A to Part 180","heading":"Appendix A to Part 180—Internal Self-closing Stop Valve Emergency Closure Test for Liquefied Compressed Gases","body":"1. In performing this test, all internal self-closing stop valves must be opened. Each emergency discharge control remote actuator (on-truck and off-truck) must be operated to ensure that each internal self-closing stop valve's lever, piston, or other valve indicator has moved to the closed position.\n2. On pump-actuated pressure differential internal valves, the three-way toggle valve handle or its cable attachment must be activated to verify that the toggle handle moves to the closed position.","path":["Title 49—Transportation","Subtitle B—Other Regulations Relating to Transportation","CHAPTER I—PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION","SUBCHAPTER C—HAZARDOUS MATERIALS REGULATIONS","PART 180—CONTINUING QUALIFICATION AND MAINTENANCE OF PACKAGINGS"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-49.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:34Z","sha256":"e879189571a1e5df2186f859abe205d5e1e16b89354d9e5374bc56076817d5bf","source_id":"us-cfr","stale":true,"prev":"us/49-cfr-180.605","next":"us/49-cfr-appendix-b-to-part-180"},"notice":"GroundRules: Original legal text. Not legal advice."}