Access to registered premises requires written authorization by a senior officer before each visit, limiting blanket inspection powers. Access to registered premises under Rule 5A is permitted only after written authorisation for each visit by an officer not below the rank of Assistant/Deputy Commissioner; blanket trade notices granting unfettered visitation powers are not permitted. Authorisations may be recorded in a maintained register, to be reviewed monthly by the Joint/Additional Commissioner and quarterly by the Commissioner; the directive also applies to investigative formations and cancels contrary instructions.