Library / Extraordinary Federal Republic of Nigeria Official Gazette No. 33
Extraordinary Federal Republic of Nigeria Official Gazette No. 33

Page 9 of 17
Operations 
management 
and 
supervision 
of metering 
systems. 
Measurement 
loss 
and 
shrinkage. 
Powers to 
make 
Guidelines, 
etc. 
(5) 
A licensee or permit holder shall keep and submit periodic 
measurement system data when requested by the Authority. 
(6) All system diagnosis, modification, upgrade, and maintenance shall 
not be carried out without the approval of the Authority. 
(7) 
A licensee or permit holder shall not make any alterations in the 
measuring or weighing equipment or appliances, including prover loop detector 
switch,or in the method of measurement or weighing without participation and 
approval of the Authority. 
(8) 
A 
licensee or permit holder shall conduct meter linearity annually 
and the report of such exercise shall be approved by the Authority. 
(9) A permit holder shall conduct master meter linearity in the manner 
prescribed by the Authority. 
(10) A licensee or permit holder shall conduct uncertainty analysis for 
metering system in the manner prescribed by the Authority. 
14. 
The Authority shall have power to witness and supervise the 
development of metering systems through — 
(a) meter selection 
; 
(b) conceptual design 
; 
(c) detailed engineering ; 
(d) verification of accuracy of sampling systems, flow computers, gas 
chromatograph, proving systems and other critical components ; 
(e) fabrication and inspection 
; and 
(7) 
factory and site acceptance tests. 
15.—(1) 
Petroleum allocation methodologies shall be approved by the 
Authority prior to implementation. 
(2) Cargo loss or shrinkage complaints shall be reported to and investigated 
by the Authority. 
(3) A licensee shall not apply a shrinkage, measurement 
loss or decanting 
method to natural gas or its derivatives, crude oil or its derivatives, condensate, 
petroleum liquids, petroleum products or any other form of petroleum liquids 
without the prior approval of the Authority. 
Part V — MISCELLANEOUS PROVISIONS 
16.—(1) 
The Authority may issue guidelines, directives, notices and 
metering codes for the effective implementation of these Regulations. 
(2) Where no specific provision 
is made in these Regulations for any 
part of natural gas or its derivatives, crude oil or its derivatives, condensate, 
petroleum liquids, petroleum products or any other form of petroleum liquids 
measurement operations in Nigeria, subject to the approval of the Authority, 
practices conforming with international best standards shall be observed.