Library / Applicable to all Oil & Gas Operators GUIDELINES FOR THE IMPLEMENTATION OF RISK BASED INSPECTION IN THE NIGERIAN OIL AND GAS INDUSTRY Code: DPR Guide 0022 - 2020

Applicable to all Oil & Gas Operators GUIDELINES FOR THE IMPLEMENTATION OF RISK BASED INSPECTION IN THE NIGERIAN OIL AND GAS INDUSTRY Code: DPR Guide 0022 - 2020

Page 11 of 20

Open the PDF at page 11

 
 
 
 
Applicable to all Oil & Gas Operators  
GUIDELINES FOR THE IMPLEMENTATION OF RISK BASED INSPECTION IN 
THE NIGERIAN OIL AND GAS INDUSTRY 
Code: DPR Guide 0022 - 2020 
 
Revision Date: 1st August 2020 
 
 
 
This is a property of the Department of Petroleum Resources. All rights reserved  
 
7 
3.3.2 
Definition of Acceptance Criteria (AC) 
The Acceptance Criteria (AC) expresses the level of risk deemed acceptable by an Operator 
for a given period or phase of activities. It expresses a standpoint regarding risk connected 
to loss of lives, injury, property damage, production down time and damage to the 
environment. It must reflect the safety objectives and peculiar characteristics of the 
activities. The following amongst others shall form the basis for defining Acceptance 
Criteria (AC): 
i. 
Safety legislation. 
ii. 
Recognized industry standards. 
iii. 
Applicable risk reduction measures. 
iv. 
Prior knowledge of accidental events and their effects.  
v. 
Experience and sound engineering judgment. 
vi. 
Social perception and acceptability 
Limits for Quantitative Acceptance Criteria shall be clearly defined for their application and 
all data used shall be documented.  Due to uncertainty in expressing risk in quantitative 
terms, the way quantitative AC are to be used shall be specified and efforts shall be made 
to reduce subjectivity to the barest minimum.  Similarly, conditions for Qualitative 
Acceptance Criteria shall be defined. An Operator is expected to revise the AC over time 
to take account inter alia of experience, additional information, possible changes in the 
activities and technological advancement. Furthermore, the achievement of safety 
objectives may entail an actual reduction of risk in the activities, and thus provide basis for 
a revised definition of acceptance criteria. 
3.4 
RBI Assessment for Facilities  
The issued approval-in-principle grants an Operator the permission to proceed with RBI 
assessment   for   each   facility   and   is   not   the   final   approval   required   for   RBI 
implementation. In order to implement RBI for any facility based on the approval-in-