This led to some exceptions being made for transactions up to $2,500, since the Financial Regulations and Rules permit contracts of up to $2,500 without a written purchase order.
但这也导致出现交易额高达2 500美元的例外情况，因为《财务条例和细则》允许可不经书面采购订单而签订高达2 500美元的合同。