There is a standard (Masonry Wall Bracing Handbook) that is available from the MCAA (Masonry Contractors Association of America). From what I recall it includes bracing recommendations during concretuction and after grouting. It was developed about 4 or 5 years ago by members of the masonry industry and OSHA. It is not necessarily an engineering document, but is geared toward the practical guidlelines for bracing. I would imagine that some insurance carriers are not endorsing or criticizing the handbook.
The association is not necessarily the voice for the masonry industry, but represent a core of established contractors.