Library / B 771 Federal Republic of Nigeria Official Gazette No. 106
B 771 Federal Republic of Nigeria Official Gazette No. 106

Page 28 of 29
B  798
“mSv” means milliSievert ;
“manager” means the person or entity appointed by the company to
be in charge of all operations approved by the Authority under these
Regulations ;
“NACE” means the National Association of Corrosion Engineers ;
“NNRA” means the Nigeria Nuclear Regulatory Authority ;
“petroleum operations” means any facility that handles or processes
hydrocarbons (including retail outlets) ;
“pressure vessel” means a closed vessel of any capacity subjected or
which may be subjected to an internal pressure above atmospheric ;
“recommended test pressure” means pressure which is not less than
one and half times the maximum allowable working pressure ;
“restricted area” in a petroleum operation means an area in which access
control and other precautions are necessary to ensure safety by reason of
the possible presence of dangerous atmosphere or because of the operations
being carried out in it ;
“serious injury” means—
(a) a fractured skull, pelvis, thigh, spine, arm, forearm or leg,
(b) a dislocated shoulder, hip, knee or spine,
(c)  the amputation of an arm or hand, or of one finger or more on the
same hand, or of a leg or a foot,
(d)  the loss of the sight of an eye or chemical or hot metal burn to the
eye or any penetrating injury to the eye,
(e)  any other serious bodily injury including internal hemorrhage, burns
and asphyxia, where the injury is likely to endanger life, cause permanent
incapacity or substantially impair efficiency, or
(f ) any other injury of similar magnitude or as may be specified by
the Authority ;
“safety case” means the justification provided by a licensee or permit
holder that a facility or installation will be operated safely and all residual
risks will be brought to ALARP ; and
“safety clearance” means a clean bill certification issued to a licensee
or permit holder who has met all health, safety and environmental standards
as determined by the Authority, prior to issuance of licences, permits and
authorisations or renewal of same ;
“technical safety studies” means studies such as HAZOP, SAFOP,
HAZID, Human Factor Engineering, SIL studies, Bowtie, PSSR, RAMS
and design review used to establish the safety of a facility ;
“TWA” means Time Weighted Average ; and
“unrestricted area” in a petroleum operation means an area which is
free from hydrocarbon vapours in dangerous or hazardous quantities and in
which it is safe to accommodate boilers, open fires or flames, workshop,
service buildings or other similar structures ;