Our Services

TRA offers a wide array of services to the manufactured shelter and industrialized housing industries.

Engineering & Calculations

TRA offers engineering services in areas where there is no conflicting interests with our primary functions of plan review, certification and inspection. We can provide structural engineering services to the Industrialized Building Industry for code approvals nationwide. Our staff of engineers can provide calculations supporting your designs or assisting in the design for Manufactured Housing and the International Building Code.

Read more

Plan Review & Approval

TRA offers a thorough, quality plan review and approval service for every local, state and national organization which recognizes such services. Our staff includes Registered Professional Engineers, who are licensed in many states. Our staff also includes certified plan reviewers in all construction disciplines. Refer to the Credentials section for a complete listing of accreditations and Plan Review & Approval Jurisdictions.

Read more

Inspection Services

Our inspectors are not only qualified in numerous disciplines but are located near you for timely service.

TRA as an In Plant Inspection Agency (IPIA), offers inspection services for every local, state and national organization which recognizes such services. Our staff includes licensed inspectors in all disciplines and in all states which offer licensing. Our inspectors are located throughout the United States and other countries to efficiently serve your needs at a reasonable cost.

Refer to the Credentials section for a complete listing of accreditations and Inspection Jurisdictions for states in which TRA is approved to perform inspection services.

Read more

Drafting & Code Drawings

Whether standard or custom, TRA has the computer drafting capabilities to meet your needs. TRA can provide full production drawings for recreational vehicles and park trailers.

Our specialty is code drawings depicting the aspects of your various models which must be documented for state approvals. These drawings can be prepared from information which you provide or from the actual units in production. As specialists in this field, a code drawing can be prepared more quickly and economically than most in-house drafting departments.

Read more

Modular Recertification

TRA offers a recertification process for existing commercial relocatable modular buildings. The process provides for the recertification across state lines. It also allows a leasing agent the ability to more fully utilize their existing assets through recertification.

Read more

Energy Star

Environmentally sound and customer appeal...

TRA provides services to certify your manufacturing facility to produce Energy Star homes that are desirable to energy conscience consumers. Energy Star labels are available through TRA to complete the required certification process. Contact TRA and we can help you with a quality process to produce quality Energy Star homes.

Read more

Utility Trailers with Living Quarters

In recent years, the industry has expanded the recreational vehicle facilities to include horse trailers, race car trailers and similar units which have become very popular.

The TRA Inspection Program for conversion trailers is the same as the recreational vehicle inspection program which we have operated since the inception of the RV standards. TRA is a qualified Third Party Plan Review and/or Inspection agency for every state which recognizes such programs.

Read more

Product Listing Service

Our testing and listing services give you all the credentials you need to meet industry regulations.

TRA product listing services provide a method for getting your products accepted throughout the marketplace. We can arrange for structural testing services, which provide the documentation necessary to gain approval for innovative structural systems and as a substitute for extensive structural calculation procedures. Test reports are available with appropriate engineer seals.

Read more


TRA has been accredited by the Standards Council of Canada to perform certifications for manufactured structures for Canada.

Our accreditation as a Certification Body includes the labeling of Recreational Vehicles, Park Trailers, Manufactured (Mobile) Homes, Modular Homes and Commercial Modular structures, including Alberta Part 10 Man Camps.

TRA a été accrédité par le Conseil Canadien des Normes pour effectuer des certifications pour les structures fabriquées pour le Canada. Notre accréditation comme un organisme de certification comprend l'étiquetage des véhicules récréatifs, remorques Parc, maisons préfabriquées (mobiles), Maisons modulaires et structures modulaires de commerce, y compris l'Alberta Partie 10.

Read more