Regulation 13 Holdings and investments
Any sum paid into a billing authority’s collection fund which is not immediately required for the purpose of making payments or transfers from that fund shall be–
held in cash;
invested in a prescribed investment; or
transferred to the billing authority’s general fund.
Any sum transferred under paragraph (1) from an authority’s collection fund to its general fund shall be–
held in cash;
invested in a prescribed investment; or
used for the discharge of the authority’s functions.
A prescribed investment is an investment prescribed in Schedule 3 to these Regulations.
Where a sum has been transferred to its general fund under paragraph (1), a billing authority shall–
immediately retransfer the sum if such a retransfer is required to enable the authority to meet payments or transfers from its collection fund; and
otherwise retransfer the sum as and when it thinks fit.