A set of regulations made under the Pensions Act, 1990 setting out certain investment and borrowing rules that trustees of schemes must comply with when investing the assets of a pension scheme. These include investing predominantly in regulated markets (while keeping other investments to a prudent level) and diversifying investments so as to minimise the risk of large losses owing to excessive concentration of risk. The investment rules and borrowing restrictions do not apply to ‘one-member arrangements’. The investment regulations are formally called the Occupational Pension Schemes (Investment) Regulations, 2006, as amended. The relevant statutory instrument references are SI No 294 of 2006, SI No 188 of 2007 and SI No 455 of 2010.