People involved in maintenance of transit buses must frequently address issues for which no internal written maintenance practices are available. Consequently, information must be gathered to assist in determining how best to address the issues. Whether the issue is an equipment problem, an inspection procedure, a campaign replacement, a climatological adaptation, or a routine cleaning, information usually is gathered from other transit systems and vendors, and a maintenance practice is developed to meet the needs of the local system. That practice then becomes the de facto norm for the system until a better way to address the issue is identified. Unfortunately, the results of such efforts are not typically shared with the rest of the transit industry. Consequently, many transit systems, facing the same need to provide detailed work procedures, expend valuable time and resources duplicating the research of other transit systems. Consequently, research was needed to provide guidance to transit systems on a methodology for developing bus maintenance practices and sharing them with the rest of the transit industry. The intent of this research was not to develop universal best maintenance practices, but, rather, to assist maintenance managers in obtaining and validating relevant information, filling in the gaps where necessary, developing a practice most applicable to local conditions, and appropriately sharing maintenance practices with the rest of the transit industry.