Earthquake Brace+Bolt

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Licensed Design Professional

EBB was created to provide incentives to California homeowners to seismically retrofit wood-frame residential structures. As an accommodation to individuals that may have some need to have a third-party representative complete the EBB Program Application, we provide the Registration Authorization Form.

An engineered solution is required for qualifying houses with cripple walls that exceed 4 feet in height or:

  •  Have a lateral-force-resisting system using poles or columns embedded in the ground;
  •  Exceed three stories in height or is a three-story house with cripple wall studs exceeding 14 inches in height;
  •  Are constructed in whole or in part on concrete slab(s) on grade; or
  •  Are classified by the local building department as a house required to be retrofit with plans prepared by a design professional.

California-licensed civil and structural engineers who do residential work are encouraged to join the EBB Licensed Design Professional Directory by emailing your information to



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