There are multiple definitions - click on the translation that matches your context.

przepis wewnętrzny

rzeczownik

full

bylaw

noun

Definitions of bylaw

(UK) a law made by a local government that only relates to its particular region

A new bylaw has been introduced to ban fishing for salmon and sea trout along a stretch of Cumbria coastline.

(US) a rule made by a company or organisation that its members must obey

The manager is appointed according to the corporation's bylaws.