MCO 4000.59 governs Marine Corps policy for 50/50 reporting of depot maintenance workload between the public and private sector.
View MCO 4000.59 on armypubs.army.mil
MCO 4000.59 establishes the 50/50 reporting process, defines organizational roles, and provides procedural guidance for identifying, retaining, and reporting obligations. It requires quarterly data assembly, annual reporting, and data audit and certification before submission.
Applies to: This Order is applicable to the Marine Corps Total Force.
Reference (a) states no more than 50 percent of funds made available to a military department for depot-level maintenance and repair workload may be used to contract for the performance by non-Federal Government personnel. (paragraph 1)
Any funds not contracted out must be used for performance by employees of the Department of Defense (DoD). (paragraph 1)
The 50/50 process is a requirement initiated by OSD (MPP) to identify and report funds obligated for Depot Level Maintenance Workload annually. (paragraph 3)
The Marine Corps assembles 50/50 data quarterly for oversight and governance to ensure compliance with its reporting requirement. (paragraph 3)
The 4th quarter cumulative report serves as the official requirement for the annual 50/50 reporting. (paragraph 3)