scope:

Scope and Applicability.

The submarine engineered operating cycle (SEOC) program is invoked on all submarines upon obtaining post-shakedown availability (PSA), unrestricted operations (URO) certification or after new construction URO certification if no PSA is scheduled.

Purpose.

a. Describe program elements, requirements and responsibilities for support of engineered operating cycle (OPCYCLE) programs for submarines.

b. Define operating interval (OPINTERVAL), OPCYCLE and service life, which are supported by the class maintenance plan (CMP) for each class of submarine.

c. Outline provisions and actions required before exceeding established submarine OPINTERVAL, OPCYCLE and service life. This will ensure all submarines are maintained to maximize their safe and effective operation throughout their respective lifecycles.

d. Delegate and authorize Program Executive Officer, Attack Submarines (PEO SSN) and Program Executive Officer, Strategic Submarines (PEO SSBN) with implementation, tracking and management of this instruction.

e. Delegate signature authority for OPINTERVAL and OPCYCLE extension approval to PEO SSN and PEO SSBN based on the requirements outlined in this instruction. The Office of the Chief of Naval Operations (OPNAV) retains signature authority for service life extension (SLE) approval.