Policy Letter 91-2, Service Contracting†
OFPP Policy Letter 91-2 establishes government-wide policies for acquisition of services. A copy of this Policy Letter and an Office of Federal Procurement Policy background memo on it is attached for your guidance.
Please note particularly the preference for performance based statements of work (based on what is needed, rather than how it is to be accomplished), and the requirement to develop formal, measurable performance standards and surveillance plans for evaluation of contractor performance.
You should use your best efforts to insure that scopes of work under new service contracts are performance based, and that formal quality assurance standards are included in the contract. To the extent the requirements of Policy Letter 91-2 cannot be applied, the memorandum of negotiation should provide specific explanation and justification.