Regulation 8 Procedure for certification
Subject to regulation 9, a meter which is submitted to a meter examiner or an authorised examiner shall not be certified by him unless he is satisfied that the meter–
is of an approved pattern or construction;
is accompanied by the report referred to in paragraph (2) of regulation 7;
has been tested in accordance with the provisions of Schedule 3 and conforms to the standards described in that Schedule; and
that the meter can reasonably be expected to operate within the permitted margins of error for a period of not less than ten years from the date upon which it is certified.
The permitted margins of error shall be an error not exceeding 2.5 per centum plus or 3.5 per centum minus at any load at which the meter is designed to operate.
Where the examiner is satisfied that a meter complies with paragraph (1), he shall issue a certificate of compliance specifying the serial number of the meter.
Each certificate under paragraph (3) shall be numbered in the sequence in which it is issued.
A certificate signed by the examiner by whom it is issued under paragraph (3) shall be conclusive evidence that the meter has been certified for the purpose of these Regulations.