TOEFL / Reading practice / Section A54T
Read in Daily Life

Read a notice pinned beside the door of the workshop tool store.

TOOL STORE - TAKING THINGS OUT AND BRINGING THEM BACK
Hand tools go out for one day at a time. A power tool goes out only with a sheet signed by a technician, and only for the afternoon. Write your name and the hour in the ledger when you take something, and cross your line out when you bring it back. Leaving a tool on the counter and walking off is not a return; the loan stays open until the line is crossed out. If something breaks while you are using it, say so at the desk. There is no charge for a breakage you report, and there is a charge for one we discover on the next loan. The store shuts at four, an hour before the workshop itself, so that the shelves can be checked.
21. According to the notice, when does a loan end?