StacksVerified U.S. regulatory reference

30 CFR §250.240

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
You must include the following information in your DWOP, as applicable, to be consistent with the activities you plan to address in the associated production safety system application:
  1. (a)A general description of the operating procedures;
  2. (b)Information about the design, fabrication, and operation of an offtake system for transferring produced hydrocarbons to a transport vessel, including a table summarizing the curtailment of production and offloading based on operational considerations;
  3. (c)A description of the process facility installation and commissioning procedure;
  4. (d)A safety analysis flow diagram of the production system from the SCSSV downstream to the first item of separation equipment;
  5. (e)A statement that the surface and/or subsea safety system and emergency support systems will comply with Subpart H of this part. This statement must include:
    1. (1)The methods, frequency, and acceptance criteria for testing the underwater safety valves (USVs), SCSSVs, and boarding shutdown valves;
    2. (2)A description of the function and testing of the host facility Emergency Shutdown Device (ESD) system and its interface to the subsea system; and
    3. (3)If applicable, a description of the surface and/or subsea safety system and emergency support systems not covered in Subpart H of this part. If you propose to use systems not covered in Subpart H of this part, you must request an approval of alternate procedures or equipment according to § 250.141, and you must also include a table that depicts what valves will close, at what times, and for what events or reasons; and
  6. (f)Information regarding the design, operation, maintenance, personnel competency, and testing of your subsea leak detection system to protect your subsea field/infrastructure (e.g., trees, manifolds, jumpers). You must include a description of the procedures regarding how you will operate the system, ensure system functionality, identify a leak, and the actions you will take if a leak is identified.