The documented QA and HSE system, which is adopted as the guidance for success, is a four level model as follows:

Policy and Authority Statement Manual, which states the philosophy, policy, and authority and gives information in general terms. Guidance is ISO 10 013. Included are, the policy and authority statements, and typical for the Nigerian situation (for example security, community affairs, environmental, drug and alcohol, journey management, communication.)
Quality Management System Manual, documenting the QA system, plans, and defines the implementation strategy. Guidance is ISO 9001.
Safety Management System Manual, documenting the elements of the occupational health, safety and protection of the environment systems as defined in the Safety Act 1997, and ISO 14001: 1996 and other international industrial standards.
Quality Assurance and Safety (HSE) Procedures, which documents the structure of procedures. It outlines the task, responsibility, frequency and the dependency of each relevant part of the quality process and the business of the customer. Guidance is ISO 9001 clause 4 through 8 and ISO 9004 (guidelines), ISO 14001 section 4.
Specific Work Instructions, detailing the step-by-step instructions, specific for the services to be provided to the customers of the operation. The instructions specifies the tools, workmanship criteria, gives guidance to direct and indirect processes of the nature of the business of the company. This will be the guidance for the day-to-day activities of all personnel involved in the operation of the customer. The documentation includes the work instructions, plans, drawings, etc.
Quality and Safety Records, which is the management database, with the results, needs and desires to retain the data. It forms the objective evidence that the quality and safety (HSE) system complies with the standards.