Rule
prescription, including laws, regulations, instructions, guidelines, and social conventions; determinate method for performing any operation
Q-derivative
royal instructions
safety standard
Russian spelling rules
sterile cockpit rule
tag up
requirement
law
tie-breaking in Swiss-system tournaments
pain ladder
Utility clothing
Bank pool
legal maxim
local ordinance
cataloguing rules
tariff
coding convention
monastic rule
Broughton's Rules
Spanish Organic Law
school rules
bridge convention
appellate decision