(1)  The administering authority may give a manufacturer or importer of glass measures written approval for the glass measures to be tested and marked under this Part.

(2)  An approval ceases to have effect if it is revoked by the administering authority or if the manufacturer or importer fails –

(a) to comply with any requirements of the administering authority notified in the approval; or

(b) to take reasonable precautions to prevent the commission of an offence referred to in regulation 15 ; or

(c) to provide and pay for testing facilities as required by the administering authority; or

(d) to make the testing facilities available, without charge, for use by an inspector or licensee in order to carry out tests in accordance with regulation 16 ; or

(e) to comply with regulation 17 relating to the keeping and examination of records.