stricter, rigorous, restrictive, tighter, onerous, draconian, lenient, tougher, exacting, laxer, rigid, mandatory, toughened, standard, harsher, compliant, permissive, prescriptive, looser, scrupulous, standardized, stiffer, burdensome, robust, antipollution, sophisticated, relaxed, overburdensome, strident, expensive, incompliant, proactive, noncomplying, proscriptive, punitive, thorough, selective, sterner, aggressive, intrusive, enforceable, costly, prohibitory, severe, efficient, finicky, flexible, intensive, hygienic, comprehensive, sensitive, regimented, crashworthy, cumbersome, zero tolerance, beefed, puritanical, standardised, certified, streamlined, inflexible, nonconformance, foolproof, constrictive, resistant, simplified, voluntary, prudent, regulative, sulfur oxide, problematic, censorious, diligent, humane, draconic, intense, labor intensive, completive, conscientious, tolerant, vigilant, stipulated, accrual accounting, austere, drastic, epichlorohydrin, careful, sulphur dioxide, thirstier, inhibitive, transparent, extensive, centralized, overzealous, extreme, uncompromising, egregious, fussier, zealous, supercritical, user friendly, specific, strict, applicable, imposed, statutory, legislated, nondiscrimination, lax, nondiscriminatory, harmonised, precautionary, unenforceable, disclosure

strictly, stringently, tightened

demanding, tight