This is from the 2006 OBC:
**22.214.171.124. Support of Beams
(1) **Not less than a 190 mm depth of solid masonry shall be provided beneath beams supported on masonry.
**(2) **Where the beam referred to in Sentence (1) is supported below the top of the *foundation *walls, the ends of such beams
shall be protected from the weather.
Am I reading this wrong - 190 mm (7.5 inches) seems excessive. In the 1997 code it was 3.5 inches of bearing.
7.5 inches would almost take you through some foundation walls.