# The Meters (Certification) Order 1987, Schedule 1: SINGLE-PHASE CREDIT METERS


(1)
(2)
(3)
Type of Meter
Certified
Period of Certification
UV (SR/LR)
Before 31st December 1977
20 years
UVA (SR/LR)
On or after 31st December 1977
15 years
UVB (SR/LR)
On or after 31st December 1977
15 years
UVE (SR/LR)
On or after 31st December 1977
15 years
HM (SR/LR)
On or after 31st December 1977
15 years
HMT (SR/LR)
On or after 31st December 1977
15 years
AR (SR/LR)
On or after 31st December 1977
15 years
eI (SR/LR)
On or after 31st December 1977
15 years
NF5 (MCR with cyclometer registers)
On or after 1st January 1972
15 years
ZE (SR/LR)
On or after 1st January 1972
15 years
ZEA (SR/LR)
On or after 1st January 1972
15 years
ZEB (SR/LR)
On or after 1st January 1972
15 years
HMT (MCR)
eN (MCR)
On or after 1st January 1972
15 years or until 31st December 1999 if earlier
Any type of single-phase credit meter not described above
On or after 1st January 1966
20 years

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Source: https://www.legislation.gov.uk/uksi/1987/730/schedule/1 (the official version)
Page: https://openlegislation.uk/meters-certification-order-1987/schedule-1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.