Code of Federal Regulations Title 30. Mineral Resources § 30.250.433 What are the diverter actuation and testing requirements?

(a) For drilling operations with a surface wellhead configuration, you must actuate the diverter system at least once every 24–hour period after the initial test. After you have nippled up on conductor casing, you must pressure-test the diverter-sealing element and diverter valves to a minimum of 200 psi. While the diverter is installed, you must conduct subsequent pressure tests within 7 days after the previous test.

(b) For floating drilling operations with a subsea BOP stack, you must actuate the diverter system within 7 days after the previous actuation. For subsequent testing, you may partially actuate the diverter element and a flow test is not required.

(c) You must alternate actuations and tests between control stations.