Any component type that has received a VMA number and is listed on this site has been independently tested for seismic qualification and certification in full compliance with:

  • International Building Code® (IBC®)
  • ICC-ES AC156
  • ASCE7

If we are aware of components obtaining a VMA number that have also received an OSP number1, we have listed the OSP number with a link to the OSHPD website as part of this listing.

To maintain a certificate of compliance, component manufacturers must agree to an engineering and quality assurance audit of the component at their manufacturing facilities by VMC Group – providing assurance that every VMA number is not only certified, but audited to ensure full compliance is maintained.

For over 10 decades, VMC Group has been recognized as a world leader in the design and manufacture of vibration isolation, seismic control and shock protection products.

Our comprehensive product and engineering solutions cover a variety of industries – commercial construction, industrial/vehicular, OEM and military/aerospace. Our full range of spring, elastomeric architectural mounts, wire rope isolators, curbs and bases are proven to meet and exceed specifications for any seismic, non-seismic, shock, or even bomb blast application.

VMC Group’s engineering services division provides a wide array of services for our clients including FEA and structural analysis on mechanical and electrical equipment, shake table testing for seismic and shock or bomb blast applications. A complete listing of our engineering services can be found on our website.

1HCAI Special Seismic Certification preapproval OSP number for jurisdiction in California hospitals