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A customer said we need to be registered with National Highway Traffic Safety Administration (NHTSA) under Manufacturer Identification requirements in 49 Code of Federal Regulations Part 566. We are a truck equipment...

We are an upfitter and have recently been receiving glider kits completed by other companies. Our customers want us to add truck bodies and various equipment, after which they ask us to certify the vehicle and place a...

As a truck equipment distributor, we regularly receive customer questions about what counts toward length and width limits. They want to maximize the size of their vehicles when we spec’ the application with them. Where...

We are a final-stage manufacturer and heard there are new roof crush requirements taking effect this fall — but we thought there were already new requirements that went into effect last year. Can you please clarify?

Recently, a customer was cited by an enforcement official for having “an improper GVWR (gross vehicle weight rating) sticker” on a new truck we produced for him and was instructed to install a “proper label” or the truck...

We are an upfitter, and were asked to install a new truck body and equipment on a customer’s used truck chassis. We were told we need to certify the used vehicle because we installed a new body. Do we have to certify a...

We are a truck equipment upfitter that sells and installs elevating tailgates on straight trucks. Recently, a customer who owns a straight truck with a van body and liftgate was issued a citation by a motor carrier...

We are an upfitter, and one of our customers is a large municipality that operates and maintains a fleet of commercial trucks. They often buy new incomplete chassis-cabs from a local dealer to swap underneath a used...

Many work truck upfitters understand that as motor vehicle assemblers, they are considered manufacturers by NHTSA under vehicle certification regulations (49 CFR Part 566). Additionally, they know they are responsible as...

A customer who traditionally used a Class 3 truck — 10,001 to 14,000-pound GVWR — is now interested in a vehicle with a GVWR less than 10,000 pounds, while still carrying the same payload used in the Class 3 truck. As an...