Earthquake Hazard Reduction Ordinances

About the Ordinances

The ordinances posted here are designed to mitigate and reduce the earthquake hazards of certain types of buildings.

The Soft-Story Apartment Earthquake Retrofit Ordinance is a voluntary ordinance developed to address the earthquake hazards of apartments with tuck-under parking that were not specifically designed to consider the effect of reduced stiffness in the building at the ground level due to the parking garage opening.

The Tilt-UP and Reinforced Masonry Buildings with Flexible Diaphragm Ordinance, locally referred to as the TRM Earthquake Retrofit Ordinances, were enacted to require repairs of certain weaknesses at the connection of walls to wood or other flexible roof and floor systems.

For more information, contact the Building and Safety Division at 510-494-4400.