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Applicable to all Oil & Gas Operators and Service Providers GUIDELINES AND REQUIREMENTS FOR WORK AT HEIGHT AND IN CONFINED SPACES IN THE NIGERIAN OIL AND GAS INDUSTRY

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Applicable to all Operators and service 
companies 
GUIDELINES AND REQUIREMENTS FOR WORK AT HEIGHT AND IN 
CONFINED SPACES IN THE NIGERIAN OIL AND GAS INDUSTRY 
Code:  DPR Guide 0037 – 2020  
 
Revision Date: 2nd October 2020 
 
 
 
This is a property of the Department of Petroleum Resources. All rights reserved. 
 
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Oils (Safety) Regulations (MOSR), 1997 and Petroleum (Drilling and Production) 
Regulations, 1969 and subsequent amendments for the purpose of work at height 
and working in confined spaces.  
Note: All technical details on the requirements for using mechanical elevators in 
WAH are covered in the DPR Guidelines and Procedures for Lifting Equipment and 
Lifting Operations which can be found on the DPR website via www.dpr.gov.ng. 
1.4 Definition of Terms 
1. Work at Height (WAH): Work at Height (WAH) refers to all work activities 
regardless of work task and duration, where the risk of falling a distance is liable 
to cause injury.  
2. Confined Space:  Confined space refers to an enclosed or partially enclosed 
space not designed for continuous human occupancy and which harbours one 
or more of the following risks: 
i. 
Limited opening for entry or egress of persons 
ii. 
Unsafe level of oxygen 
iii. 
Unsafe level of contaminants, gases, fumes and vapours and 
iv. 
Substances that can cause engulfment 
 
Examples of confined spaces are process vessels, storage tanks, boilers, mud 
pits, silos, open-topped chambers, ducts, flues, sewer systems, excavations, 
trenches and other tank-like compartments usually having a manhole for entry.