The best guide I've managed to find was by Simpson Strongtie. They manufacture loads of structural bracketry used in building construction and seismic retofits

The best guide I've managed to find was by Simpson Strongtie. They manufacture loads of structural bracketry used in building construction and seismic retofits. As far as I could tell, the most important components are to make sure your sill plates are firmly attached to the foundation (with big washers on the bolts going through the sill plates or the Simpson UFP or some other plate), shear walls, and post caps. I talked to a Simpson field engineer (they actually answer the phone) that essentially confirmed this. http://www.strongtie.com/resources/literature/seismic-retrofit-guide http://www.strongtie.com/resources/literature/seismic-retrof...