प्रसन्नायोगः श्वेतसुरायाः ॥ कZ_०२.२५.३१ ॥
prasannā-yogaḥ śveta-surāyāḥ
प्रसन्नायोगः श्वेतसुरायाः अपि प्रवर्तते।
To reduce complexity in regulation and enforcement by reusing an approved standard rather than issuing redundant formulations.