Welcome To THIA

Written by Janet Thome

We would like to welcome ICC NTA, LLC an independent third party Approved Agency per Section 1703 of the International Building Code to the Tiny Home Industry Association as a new commercial member. ICC NTA, LLC  provides code evaluation, product certification, inspection, engineering, off-site construction plan review, and testing services, as well as independent quality and standards compliance verification for many building products.

ICC NTA, LLC  certifies Manufactured homes, Modulars, RVs, and Park Models. A lot of ”tiny home” builders are building RVs and Park Models for the ability to register and certify them, but marketing them as tiny homes or movable tiny homes.

Los Angeles just gave the green light to allow movable tiny homes as ADUs, following the lead of Fresno and San Luis Obispo. They are required to be certified and built to RV, NFPA 1192 standards or Park Model, ANSI 119.5 standards.

”Tiny Home” builders usually always voluntarily build beyond the required minimum standards, addressing snow loads when applicable, with higher insulation ratings, 2 X 6 construction, 25 year roof warranties and superior materials.

LA Ordinance

Professional Registration In All 50 States

ICC NTA , LLC  has over 60 trained professional engineers, plan reviewers, technicians, consultants and design draftsman with professional registrations in all 50 states, Guam, the District of Columbia and Canada.

NTA Joins The International Code Council’s Family Of Solutions July 12th, 2019: News From NTA

The acquisition will add laboratory and testing capabilities to the Code Council service offerings and will foster innovation by streamlining the time-to-market for product manufacturers.

The International Code Council announced today that it has acquired NTA, a leading provider of testing services, product certification, inspection, engineering, off-site construction plan review, and code evaluation. The Indiana-based company will significantly expand the services the Code Council provides by adding major laboratory and testing capabilities.

NTA currently serves residential and commercial builders, code officials, manufacturers and suppliers throughout the building industry. The company has offices and a testing laboratory in Nappanee, Indiana, and will soon break ground on a new testing campus in Bryan, Texas. Additional information about the new facility will be available soon.

“NTA joining the Code Council will bring their exceptional testing capabilities to our suite of services,” said Code Council Chief Executive Officer Dominic Sims, CBO. “This acquisition helps us to better fulfill our building safety mission and serve our members and clients.”

NTA maintains one of the largest manufacturing inspection workforce’s in the market, and its inspection professionals currently hold hundreds of Code Council certifications. Its network of auditors enables it to provide review and inspection of in-plant quality control procedures, ensuring consistent quality of products for code compliance.

Founded In 1976

“Since its founding in 1976, NTA has stood for quality and integrity,” said David A. Tompos, President and CEO of NTA. “We are a family-owned company, and entering into this partnership makes us a member of a larger family of companies. We are proud to be a part of the Code Council and are excited about the opportunities this relationship will open up for both companies. The company has over 60 trained professional engineers, plan reviewers, technicians, consultants and design draftsman with professional registrations in all 50 states, Guam, the District of Columbia and Canada.

About the International Code Council
The International Code Council is a nonprofit association that provides a wide range of building safety solutions including product evaluation, accreditation, certification, codification, and training. It develops model codes and standards used worldwide to construct safe, sustainable, affordable and resilient structures.

ICC NTA, LLC  Inspection Services

ICC NTA, LLC is the third party of choice for residential, commercial and factory-built housing inspection and certification because of their  consistent ability to deliver in-plant quality audits by knowledgeable personnel. They  employ professionals that, combined, have completed over 300 building code examinations and have over 190 inspector licenses and certifications. Their licensed inspectors aren’t just experts in housing construction, they are also experienced with Park Model and ENERGY STAR® certification programs.

ICC NTA LLC’s  network of third-party inspectors enables us to assess in-plant quality control procedures; ensuring consistent quality of your product for code compliance and if needed, help you build an entire quality assurance program. ICC NTA LLC  is also able to provide inspection services for Canada and process Canadian certifications.

Quality Audit Services

Manufacturers and products who are listed and hold an ICC–ES report may be required to have independent audits by an accredited agency like NTA. NTA offers initial and follow-up inspection services per ICC–ES AC10 (Acceptance Criteria for Quality Documentation). NTA is recognized by the following entities as being a leader in independent product quality audits:

  • Accredited under ISO/IEC 17020 to provide inspection services —  Certificate of Accreditation
  • Department of Housing and Urban Development (HUD approved IPIA services)
  • California Built Housing Design Approval Agency (DAA)
  • California Factory Built Housing Quality Assurance Agency (QAA)
  • California Approved Listing Agency
  • State of California Approved Third Party Certifier (TPC-25) Formaldehyde
  • State of Ohio Approved Listing Agency
  • State of Florida Assurance Agency (QUA3504)
  • State of Florida Validation Agency (VAL3479)
  • State of Florida Product Testing Laboratory (TST3478)
  • ICC−ES Evaluation
  • City of Houston
  • Florida 9B-72

About David R. Tompos

David is the founder of NTA and and the Director Of Sales. David is the chair of the ICC Off-Site And Modular Construction Committee ( IS-OSMC). David R. Tompos, has over 43 years of experience as an engineer, all of which has been spent within the housing industry. He is a leading authority in factory-built structures. David is responsible for the planning and execution of strategic and tactical plans to achieve the sales objectives of NTA. David is on the board of the Tiny Home Industry Association.

About David A. Tompos

David A. Tompos, LEED AP BC+D, became president and CEO of NTA and has the responsibility of the overall strategic vision and direction of the company. He also oversees all government relations, including NTA’s involvement with HUD and state agencies. David studied at Purdue University and holds a bachelor of science degree in computer and electrical engineering. After graduating in 1998, David started his career at NTA as director of testing services at the NTA Testing Laboratory. During this time, he gained a thorough understanding of manufactured housing testing procedures, inspection, product evaluation, and in-plant quality control. While serving as director of testing services, David also pioneered the development of the industry’s first electronic plan review software, eDAPIA. This advanced software revolutionized the process of third party design review by eliminating the delay in the traditional mail process and saving manufacturers considerable time and money. Before leaving the director of testing services position, David started the testing laboratory on a path to its current International Accreditation Service ISO recognition.

Code/Standards Organizations

ICC NTA LLC enjoys collaborating with standards organizations and frequently participate in committees to develop new testing requirements. Eric Tompos, P.E. is chairman of a new ASTM International committee to help the (SIP) industry create a standard for acceptance in Canada. Also, David A. Tompos has spent many years as a member of the Manufacturing Housing Consensus Committee (MHCC), a technical advisory committee for the U.S. Department of Housing and Urban Development (HUD).

About Eric Tompos:

Eric Tompos, PE, SE, CBO, is executive vice president of ICC NTA, LLC He’s a licensed civil and/or structural engineer in all 50 states. Eric has both bachelor of science and master of science degrees in civil engineering from Purdue University and is recognized as a Certified Building Official by the ICC. He has extensive experience in the design and construction of factory-built structures, building components, materials testing, and quality assurance. Eric’s current responsibilities are focused on structural design, code compliance of factory-built structures, development of policies related to NTA’s building product certification activities, and solving code compliance issues related to new and innovative building products.

Accredited By A2LA

ICC NTA, LLC is  proud that their  laboratory and product certification services are accredited by A2LA.

ICC NTA, LLC certifies compliance of each unit to ANSI A119.5 standard. Since they  are accredited by the Standards Council of Canada (SCC) to certify products to CAN/CSA Z241, your next park trailer project can meet or exceed all appropriate standards and certifications, whether it is intended for use in the United States or Canada.

ICC NTA is fully accredited to the same ISO 17065 standards as other, similar third-party agencies, ensuring that both consumers and regulatory agencies are confident their our products.

Photo Credit: Clayton Designer Series Tiny Homes by Jeffrey Dungan

NAPPANEE, INDIANA: NTA, Inc. has recently certified Cavalier Homes to produce Park Models under the NTA IM 040 Park Model Program. This program defines inspection methods and labeling for park models constructed to ANSI A119.5 – Recreational Park Model Standard. Certificate CAV(974)102815‐26 also provides evidence that Cavalier is participating in NTA’s Quality System Evaluation and Inspection Process. Cavalier Homes is a member of the Clayton family of home builders, and is located in Addison, AL.

Clayton Designer Series Tiny Homes by Jeffrey DunganThe new line of Park Models has been designed by nationally known architect, Jeffrey Dungan. To learn more about the Designer Series, or Jeffrey Dungan, visit their Designer Series website.

Clayton Designer Series Tiny Homes by Jeffrey Dungan
About NTA, Inc.:NTA, Inc., located in Nappanee, Indiana, provides building product certification, building code compliance review, engineering design services, inspection and product testing. The company has over 60 trained professional engineers, plan reviewers, technicians, consultants and design draftsman with professional registrations in all 50 states, Guam, the District of Columbia and Canada.

Factory Built Housing Manufacturers

Both manufactured and modular housing are built in a manufacturing facility and must be built to different specifications and regulations. NTA works with clients to certify the manufacturing quality control processes, and provide design review on engineering documents. We’re good at what we do and it shows. Richard Jennison, President of Manufactured Housing Institute would agree, “NTA is an industry role model and we are proud to recognize their ongoing contributions as a supplier to the manufactured and modular housing industry.”

Corporate Headquarters

305 N. Oakland Ave.
PO Box 490
Nappanee, IN 46550
T: 574.773.7975
F: 574.773.2732

Testing Laboratory

257 E. Randolph St.
Nappanee, IN 46550
T: 574.773.7975
F: 574.773.2260



Note: NTA is in the process of changing their name to ICC NTA, LLC after ICC acquired them. You will see both references in this article.