Engineer approval is Step 3 of the certification process, where a licensed structural engineer reviews the documented repair and decides whether it meets the standard required for certification. During the earlier on-site repair, our team photographs the work and forwards it to the engineer; in this step, the engineer examines that documentation, evaluates whether the rollover protective structure has been restored to specification, and either approves it or requests additional repairs before it can advance. Nothing gets certified on assumption — the engineer’s sign-off is what makes your certificate valid for inspections, regulators, and insurers.

This step exists to catch anything a cosmetic repair might hide, so the review is deliberate rather than a formality. Our structural engineer evaluates:

• Whether the structure meets standard. The repair is measured against recognized ROPS/FOPS criteria such as SAE J1040 and SAE J1194 — the standards referenced by OSHA and MSHA rules.
• The quality and integrity of the repair. OSHA requires a repaired or remounted ROPS to be restored to equal or better quality than the original, and the engineer’s review is where that’s confirmed.
• The documentation of the work. Photos captured during the on-site repair let the engineer verify how the structure was repaired and welded.
• Whether anything more is needed. If the engineer isn’t satisfied, they call for additional repairs rather than approve a structure that shouldn’t pass.

That last point is the whole reason this step matters: an engineer who will say “not yet” is exactly the engineer you want certifying the frame that protects the operator.

The engineer’s approval is what separates a real certification from a sticker. Rollover protection is a life-safety system, and the standards behind it — SAE J1040, SAE J1194, OSHA’s construction rules under 29 CFR Part 1926 Subpart W, and MSHA’s surface equipment rule under 30 CFR 57.14130 — exist because a structure that fails in a rollover can cost an operator their life. When a licensed structural engineer reviews and signs off on the repair, your certificate carries genuine engineering authority: it holds up to OSHA and MSHA inspection, it satisfies insurers, and it means the protection on your machine has been verified by someone qualified to verify it. Anyone can weld a frame; not everyone can certify that it will do its job.

If the structure isn’t ready, the engineer calls for additional repairs — and that’s a feature, not a setback. Rather than approve a repair that falls short, the engineer specifies what more is needed, the work is completed on-site, and the documentation goes back for review. This loop continues until the structure genuinely meets standard. It’s more rigorous than a rubber stamp, and that rigor is precisely what makes the final certification worth having. You’re not paying for a piece of paper; you’re paying for a structure an engineer is willing to put their name on.

Your repair is reviewed and approved by a licensed structural engineer — not a technician, a parts desk, or a general inspector. Our engineers have more than a decade of dedicated ROPS and FOPS experience and certify these structures for a living, which means they know exactly what the standards require and what a compliant repair looks like. That engineering credential is what gives your certificate its authority with regulators and insurers.

Once the engineer approves the repair, your machine moves to the final step: On-Site Re-Certification. Our team returns to your equipment’s location to complete certification, and you receive a metal compliance placard permanently affixed to the structure along with a safety certificate signed by our licensed engineers. From pre-check to placard, your machine never has to leave your site.