Here are the abbreviations of Docket currently in use: When the PRB issues a waybill, it assigns it a unique identification tag indicating the specific procedure, the nature of the problem under investigation and the fiscal year in which the procedure began. The type of procedure is abbreviated by an alphabetical code. For example, „R” represents a rate case and „RM” represents a regulatory case. The letter code is then followed by the current year and the case number for that year. For example, the case would be 2nd class for file R2009-2 for fiscal year 2009. For example, the role of the 3rd rule-making case in fiscal year 2010 would be RM2010-3.