Rulemaking power: central government may prescribe comprehensive excise rules governing valuation, assessment, credits, exemptions, and penalties. Section 37 grants the Central Government broad rulemaking power to implement the Central Excise Act, including rules on valuation, exclusions for trade discounts, assessment, collection and recovery of duties, registration and licensing, bonded warehouse regulation, regulation of production, removal and transit of excisable goods, remission, rebate and credit of duties (including credits for duties and service tax used in manufacture), inspection and sampling, detention and confiscation procedures, composition of offences, publication of contraventions, administrative fees, and monetary penalties subject to statutory limits.