Objective. The student will demonstrate compliance with the host shop's safety policies, hazard communication program, and emergency procedures before performing any hands-on repair work.
This lesson, its worked examples and its practice questions has not yet been verified by a certified examiner or master technician in the trade or by a certification or approval body. It is a study draft and may contain errors. Do not use it as instructions for work on a job site or on live equipment. Always follow your instructor, your supervising professional, and current official references and regulations.
VoTechWorks program approval and accreditation are still in progress. Credentials are issued only by the certifying bodies named in each program, after their own exams.
Your first day on the externship floor is not a day to pick up a tool. It is a day to learn how the shop keeps everyone alive and healthy. Every professional collision shop operates under layers of overlapping safety rules—federal OSHA regulations, state codes, insurance requirements, and the shop's own written policies. Before you touch a vehicle, you must understand all of them as they apply to your worksite.
Collision repair exposes workers to isocyanates in two-stage paint systems, metal fumes from welding, solvents that can ignite or damage the nervous system, and compressed gases at high pressure. OSHA's General Duty Clause requires employers to provide a workplace free from recognized hazards, and the Hazard Communication Standard (HazCom, 29 CFR 1910.1200) requires that workers know about every hazardous chemical on site before they work near it. Signing the shop's orientation acknowledgment form is your legal and professional confirmation that you received this information.
The Safety Data Sheet (SDS) binder—formerly called the MSDS binder—is the cornerstone of hazard communication. Every chemical product in the shop must have an SDS following the 16-section GHS (Globally Harmonized System) format. When you sit down with the site supervisor to review the binder, focus on:
Know where the binder is located and confirm you can access it quickly. In some shops it is now a tablet or a QR-code system—the medium does not matter; the access does.
Walk the shop with your supervisor and physically touch or operate each emergency station:
A repair order (RO) is the document that drives every action in a collision shop. Watching a complete cycle teaches you how professional accountability works:
1. Vehicle check-in: VIN scan, mileage record, pre-existing damage noted and photographed.
2. Damage documentation: Systematic photos—all four corners, close-ups of damage zones, underbody if needed—protect the shop and the customer from disputes.
3. Parts ordering: Correct part numbers from OEM or approved aftermarket sources; documentation of back-orders.
4. Work-in-progress (WIP) tagging: Each vehicle gets a tag or a digital status that tells every technician and estimator exactly where the job stands.
Record everything you observe in your field log with times and your initials. The field log is a legal document of your externship hours.
Before operating any equipment at your assigned workstation, complete the required pre-use checklist. Three pieces of equipment deserve special attention:
Vehicle lift: Inspect the runway pads, lock pins, safety-lock engagement, and hydraulic fluid level. Never position yourself or anyone else under a lift that has not fully engaged its mechanical safety locks. Follow the shop's lockout/tagout (LOTO) procedure if maintenance is needed—de-energize the power source, lock it, tag it, and verify zero energy before any work.
MIG welder: Check the wire spool tension and drive-roll pressure, inspect the gun liner and contact tip for wear, verify the shielding-gas cylinder valve is open and the regulator reads within the correct range, and confirm the work-clamp connection is secure. Auto-darkening helmets must be tested before striking an arc—look away, strike a test arc, and confirm the lens darkened.
Spray-booth air supply: Verify the intake filter differential pressure (if gauged), confirm exhaust fans run before atomizing any material, and check that the booth is in downdraft or cross-draft mode as designed. Spraying in a booth with insufficient air movement turns it into an explosive atmosphere.
Document any deficiency you find—do not correct it yourself. Report it to the supervisor in writing on the shop's deficiency form and note it in your field log.
The wrong PPE is nearly as dangerous as no PPE. Match protection to the hazard:
| Task | Minimum PPE |
|---|---|
| MIG/MAG welding | Auto-darkening welding helmet (shade 10 minimum for MIG), leather gloves, flame-resistant shop coat, safety glasses underneath |
| Spray finishing (isocyanate hardeners) | Full-face supplied-air respirator or PAPR with OV/P100 combination cartridges, chemical-resistant gloves, spray suit |
| Chemical stripping | Chemical splash goggles (not safety glasses), nitrile or neoprene gloves rated for the specific stripper, face shield, impermeable apron |
Your supervisor will administer a verbal quiz on these three task categories before you are cleared to work independently. All three must be correct.
Answer each question, then check it. Nothing is recorded; this is your own practice.
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