Safety and health, although typically joined into one function, often conflict in their demand for attention. Safety experts usually focus on the acute results of a single event, whereas health experts look at the less-visible, long-term chronic effects. Ergonomics, by virtue of its connection to both safety and health aspects, provides an opportunity to combine the two in working towards a common goal. Previous studies have shown that ergonomic reviews on field operations can lead to significant benefit to worker health and safety. Building on those studies, a series of detailed field audits were performed on pressure pumping and coiled-tubing operations. A resulting remedial work plan was proposed and is being implemented. One of the key findings was that there is no systematic involvement of ergonomic and industrial design experts in mobile equipment engineering and development. This weakness extends into the sustaining of legacy equipment and field modifications. Results of this include lost-time injuries and illnesses, their associated costs, lack of compliance with regulatory requirements, and general inadequate service delivery. This paper will propose a methodology for the practical involvement of ergonomics in mobile pumping and coiledtubing equipment and operations as part of an overall Quality Management System.Results of the implementation of this methodology on injuries and illnesses will only become apparent over time. Of course, several factors other than the equipment design come into play in injury and illness prevention. However, engineered solutions to the equipment will reduce the overall risk inherent in pressure pumping and coiled-tubing operations. Implementing a systematic involvement of ergonomic principles through the proposed methodology will identify what reasonable engineered solutions are available and should be implemented.