ground rules, regs, regulations, rules

codes, constitutions, decalogues, directoriesacts, laws, ordinances, statutesbehests, charges, commandments, commands, decrees, dictates, directions, directives, edicts, fiats, instructions, ordersaxioms, fundamentals, maxims, preceptsmorals, principles, valuesbans, interdictions, prohibitions, proscriptions, restrictionsconventions, customs, habits, manners, mores, practices(also practises), traditions, waysblueprints, canons, formulas(or formulae), guidelines, guides, standards