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About us

The Single Source Regulations Office (SSRO) is an executive non-departmental public body, sponsored by the Ministry of Defence (MOD).

Published Tuesday 25 November 2014
Updated Tuesday 8 July 2025

We were established by the Defence Reform Act 2014, which also created a regulatory framework for single source defence contracts, placing controls on the pricing of qualifying contracts and requiring greater transparency on the part of defence contractors.

Our purpose is to support and improve the operation of the regulatory framework through the delivery of our statutory functions. In carrying out these statutory functions, we aim to ensure that good value for money is obtained in government expenditure on qualifying defence contracts, and that contractors are paid a fair and reasonable price under those contracts.

Our statutory functions

GuidancePublishing guidance on Allowable Costs, Contract Profit Rate steps, Reporting and Penalties.
ReferralsGiving opinions and making determinations on matters referred to the SSRO concerning the regulatory framework.
Contract Profit RateRecommending the appropriate baseline profit rate and capital servicing rates for use in calculating contract profit rates.
ReviewKeeping the operation of the regulatory framework under review and making recommendations for changes to the Secretary of State.
ComplianceKeeping under review the extent to which reporting requirements are being complied with.
AnalysisAnalysing reported data on request for the Secretary of State and developing insights.
RecordsKeeping an up-to-date record of qualifying contracts and receiving statutory reports from defence contractors under the regulatory framework.

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