30 C.F.R. § 250.917   What are the CVA's primary duties during the fabrication phase?


Title 30 - Mineral Resources


Title 30: Mineral Resources
PART 250—OIL AND GAS AND SULPHUR OPERATIONS IN THE OUTER CONTINENTAL SHELF
Subpart I—Platforms and Structures
Platform Verification Program

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§ 250.917   What are the CVA's primary duties during the fabrication phase?

(a) The CVA must use good engineering judgement and practices in conducting an independent assessment of the fabrication activities. The CVA must monitor the fabrication of the platform or major modification to ensure that it has been built according to the approved design and the fabrication plan. If the CVA finds that fabrication procedures are changed or design specifications are modified, the CVA must inform you. If you accept the modifications, then the CVA must so inform the Regional Supervisor.

(b) Primary duties of the CVA during the fabrication phase include the following:

 ------------------------------------------------------------------------       Type of facility . . .                 The CVA must . . .------------------------------------------------------------------------(1) For all fixed platforms and non- Make periodic onsite inspections ship-shaped floating facilities.     while fabrication is in progress                                      and must verify the following                                      fabrication items, as appropriate:                                     (i) Quality control by lessee and                                      builder;                                     (ii) Fabrication site facilities;                                     (iii) Material quality and                                      identification methods;                                     (iv) Fabrication procedures                                      specified in the approved plan,                                      and adherence to such procedures;                                     (v) Welder and welding procedure                                      qualification and identification;                                     (vi) Structural tolerences                                      specified and adherence to those                                      tolerances;                                     (vii) The nondestructive                                      examination requirements, and                                      evaluation results of the                                      specified examinations;                                     (viii) Destructive testing                                      requirements and results;                                     (ix) Repair procedures;                                     (x) Installation of corrosion-                                      protection systems and splash-zone                                      protection;                                     (xi) Erection procedures to ensure                                      that overstressing of structural                                      members does not occur;                                     (xii) Alignment procedures;                                     (xiii) Dimensional check of the                                      overall structure, including any                                      turrets, turret-and-hull                                      interfaces, any mooring line and                                      chain and riser tensioning line                                      segments; and                                     (xiv) Status of quality-control                                      records at various stages of                                      fabrication.(2) For all floating facilities....  Ensure that the requirements of the                                      U.S. Coast Guard floating for                                      structural integrity and                                      stability, e.g., verification of                                      center of gravity, etc., have been                                      met. The CVA must also consider:                                     (i) Drilling, production, and                                      pipeline risers, and riser                                      tensioning systems (at least for                                      the initial fabrication of these                                      elements);                                     (ii) Turrets and turret-and-hull                                      interfaces;                                     (iii) Foundation pilings and                                      templates, and anchoring systems;                                      and                                     (iv) Mooring or tethering systems.------------------------------------------------------------------------

(c) Reports. The CVA must submit interim reports to the Regional Supervisor and to you, as appropriate. The CVA must prepare a final report covering the adequacy of the entire fabrication phase. The final report need not cover aspects of the fabrication already included in interim reports. The CVA must submit one copy of the final report to the Regional Supervisor within 90 days after completion of the fabrication phase but before the beginning of the installation phase. In the final report the CVA must:

(1) Give details of how, by whom, and when the independent monitoring activities were conducted;

(2) Describe the CVA's activities during the verification process;

(3) Summarize the CVA's findings;

(4) Confirm or deny compliance with the design specifications and the approved fabrication plan;

(5) Make a recommendation to accept or reject the fabrication; and

(6) Provide any additional comments that the CVA deems necessary.

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