48 CFR §970.2201-130

In addition to the clause at FAR 52.222-1, Notice to the Government of Labor Disputes, the contracting officer shall insert the clause at 970.5222-1, Collective Bargaining Agreements—Management and Operating Contracts, in all M&O contracts and certain other non-M&O contracts as described in 970.2201-110. The substance of the clause at 970.5222-1, Collective Bargaining Agreements, shall be included in any subcontract for protective services or other services performed on the DOE-owned site which will affect the continuity of operations of the facility.