For other similar glossary terms see:

- Secondary information provider (SIP).

- Self-invested personal pension (SIPP).

- Share incentive plan (SIP).

The trustees of an occupational pension scheme must put in place and maintain a statement of investment principles (SIP). This must set out the basis on which the trustees plan to invest the scheme assets. There are detailed requirements for the contents of a SIP, set out in section 35 of the Pensions Act 1995. The scheme's sponsoring employer has a right to be consulted on the contents of the SIP, and any revisions the trustees periodically make, but may not dictate the scheme's investment policy