Guidance on how the single source regulatory framework applies to qualifying sub-contracts
The guidance identifies and summarises the provisions of the regulatory framework for single source defence contracts which relate to qualifying sub-contracts.
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The regulatory framework for single source defence contracts applies to qualifying sub-contracts (QSCs) and to sub-contractors as it applies to qualifying defence contracts (QDCs) and to primary contractors subject to specified modifications. The regulatory framework defines when a contract is a QSC and confers a number of related obligations, rights, and powers, where specified, on the Ministry of Defence (MOD), the parties to qualifying contracts, and the SSRO. The SSRO’s guidance on qualifying sub-contracts identifies and summarises the relevant provisions of the regulatory framework and signposts readers to related SSRO guidance (for example, on contract pricing and on reporting) which should be considered alongside this document.
The guidance was prepared following a request from industry for an accessible summary of the complex regulatory provisions related to QSCs. The published guidance takes account of the feedback received from stakeholders on the draft guidance on which we consulted from April to May 2025.