| Harness size | Use the sizing chart and instructions for the specific harness model. Check the permitted user weight range, including clothing and tools, where the manufacturer specifies it. | The harness fits your body and falls within the model’s stated limits; adjustment straps have enough range to be secured correctly. | Before purchase and whenever the user, clothing, or equipment changes. |
| Inspection before donning | Check webbing, stitching, buckles, labels, and attachment points for damage, excessive wear, contamination, or missing information. Remove questionable equipment from service. | All parts are present, legible where required, and free from visible damage or defects. | Before each use, and at other intervals required by the manufacturer or workplace program. |
| Shoulder straps | Put on the harness and untwist the straps. Adjust both sides evenly using the harness’s adjustment hardware. | Straps lie flat over the shoulders without slipping off or digging in. | After donning and after any significant movement. |
| Chest strap | Position and fasten the chest strap according to the harness instructions, then remove slack without restricting normal breathing. | The strap is fastened, lies across the chest in the instructed position, and does not ride up or hang loose. | After all torso straps have been adjusted. |
| Leg straps | Fasten each leg strap and adjust it evenly. Follow the model’s instructions for positioning and tension. | Straps are secure and snug, with no twists or excessive slack, while still allowing comfortable movement. | Before connecting to a fall-protection system and after movement that could loosen them. |
| Waist or body belt (if fitted) | Fasten and adjust only as directed for the harness design and intended use. A body belt is not a substitute for a full-body harness where one is required. | The component is secure and does not interfere with the harness’s required fit or function. | During the full fit check before work. |
| Buckles and strap keepers | Engage buckles fully and route loose strap ends through the keepers provided. Use only the buckle arrangement described by the manufacturer. | Buckles are correctly connected and loose ends are controlled without obstructing adjustment. | After adjusting each strap and before starting work. |
| Fit and movement check | Move through the work positions you expect to use, such as bending and reaching, while remaining in a safe area. Recheck the straps afterward. | The harness stays in place, remains comfortable, and does not become twisted or noticeably loose. | Before work and whenever the harness has shifted. |
| Attachment point and system compatibility | Identify the attachment point specified for the intended application. Confirm that the harness, connecting equipment, and anchorage are suitable as a complete system. | Connections are made only at the designated point, and the equipment is used within its instructions and applicable work procedures. | Before each connection or change in work setup. |