30 C.F.R. § 250.603 Emergency shutdown system.
Title 30 - Mineral Resources
When well-workover operations are conducted on a well with the tree removed, an emergency shutdown system (ESD) manually controlled station shall be installed near the driller's console or well-servicing unit operator's work station, except when there is no other hydrocarbon-producing well or other hydrocarbon flow on the platform.
Title 30: Mineral Resources
PART 250—OIL AND GAS AND SULPHUR OPERATIONS IN THE OUTER CONTINENTAL SHELF
Subpart F—Oil and Gas Well-Workover Operations
§ 250.603 Emergency shutdown system.
