Customer-case shows potential for a 40% reduction in engineering hours on subsea paperwork, and up to 80% less documentation. A cross-industry project led by DNV GL to halt the boom in subsea documentation shows that implementing a standardized approach can significantly reduce engineering hours. The two-year collaboration led by DNV GL has concluded in a publicly available Recommended Practice which can reduce the amount of subsea documentation and enable documentation reuse in a typical subsea field development project. DNVGL-RP-O101 âTechnical documentation for subsea projectsâ details a required minimum set of documentation transferred between E&P companies, operators and contractors for the construction, procurement and operation of a field.