Request for information
Due to the regular need to seek further information/instructions, contractors will normally operate a system of request for information sheets in conjunction with an information request schedule. Request for information sheets (commonly referred to as RFI sheets) will normally detail a particular and precise piece of information needed (e.g. the thickness of door D101) and will state the latest date when that information is to be provided. When raised, the request for information sheets are recorded on and added to the information request schedule.
This is a sample request for information sheet.