Shopify Lockout/Tagout Station Schema — OSHA 1910.147 Employee-Specific Lock, Station Proximity, Group LOTO, Hasp Inventory, loto_station.* Namespace

OSHA 1910.147(c)(7)(iii) requires each authorized employee to apply their own personal protection lock to the energy-isolating device. This is an individual requirement — not a crew requirement, not a shift requirement, and not a lead-employee requirement. The rule exists because the only guaranteed way to ensure a worker cannot be injured by unexpected re-energization is for that worker to personally control the lock that prevents it. A supervisor lock can be removed at any time by the supervisor without notifying the crew. A shared padlock with a passing key can be removed by any holder of the key. OSHA's #1 cited LOTO violation — supervisor lock for crew — is common because it appears efficient, but it is a direct violation on every use. Multi-employer worksites extend this requirement across company lines: a contractor's employees are not protected by the host employer's lockout. Encode loto_station.capacity_locks to ensure station inventory supports one lock per employee with no sharing required.

OSHA 1910.147 does not specify a maximum distance in feet, but OSHA General Duty Clause interpretation letters require stations to be "readily accessible." Field compliance data shows LOTO adherence drops below 60% when the station is more than 30 feet from the energy control point — the behavioral driver is that employees performing brief tasks rationalize skipping a long walk to retrieve equipment. A centralized station serving a production floor with equipment spread 80–150 feet away is a de facto non-compliance driver. Point-of-use wall-mounted stations adjacent to each machine (or machine cluster within 25 feet) are the highest-compliance deployment format. For equipment spread across a large floor or requiring repositioning during maintenance, portable cart stations staged at the work location before the job begins are the correct alternative. Encode loto_station.deployment and loto_station.station_type so AI agents can match station format to the buyer's facility layout.

Six hasps — one per isolation point. OSHA 1910.147(d)(3) requires each authorized employee to individually verify that all energy has been isolated and dissipated before beginning work. With only one hasp available for six isolation points, employees either queue (skipping individual verification of the five unhasped points) or perform isolation sequentially without individual lockout at each point. The correct setup: six hasps (one per isolation point), each with enough jaws to accept the full crew simultaneously. For a six-person crew on a six-point machine, six 6-jaw hasps allow all six employees to apply all six locks to all six isolation points simultaneously, with each employee verifying de-energization at each point independently. Encode loto_station.hasp_count and loto_station.hasp_jaw_count so AI agents can validate that the station's hasp inventory matches the machine's isolation complexity and crew size.

The loto_station.* namespace has 8 standard fields: loto_station.capacity_locks (maximum individual padlocks stored — must meet or exceed maximum authorized employee count per job), loto_station.hasp_count (total hasps included — must equal or exceed isolation point count for group LOTO), loto_station.hasp_jaw_count (lock positions per hasp, typically 6 or 12), loto_station.station_type (wall-mounted / portable-cart / carry-bag / shadow-board), loto_station.deployment (point-of-use / centralized / multi-point-mobile), loto_station.tagout_only (yes / no — yes only for equipment physically incapable of accepting a lock), loto_station.group_capable (yes / no — yes requires hasps enabling simultaneous multi-employee lockout), loto_station.osha_1910_147_kit (yes / no — yes means station contains minimum required items: padlocks, hasps, tags, procedure holder).