EBB was created to provide incentives to California homeowners to seismically retrofit wood-frame residential structures. An engineered solution is required for qualifying houses with cripple walls that exceed 4 feet in height or:
(a) Have a lateral-force-resisting system using poles or columns embedded in the ground;
(b) Exceed three stories in height or is a three-story house with cripple wall studs exceeding 14 inches in height;
(c) Are constructed in whole or in part on concrete slab(s) on grade; or
(d) 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 Directory for free.
Also, this is where we should direct homeowners to verify that they are licensed,