This standard covers the use of in-line inspection (ILI) systems for onshore and offshore gas and hazardous liquid pipelines. This includes@ but is not limited to@ tethered@ self-propelled@ or free flowing systems for detecting metal loss@ cracks@ mechanical damage@ pipeline geometries@ and pipeline location or mapping@ The standard applies to both existing and developing technologies. This standard is an umbrella document that provides performance-based requirements for ILI systems@ including procedures@ personnel@ equipment@ and associated software.