1. Supreme legislation — Acts of the legislature (Federal Parliament, Provincial Assembly) and the Constitution itself.
2. Delegated (subordinate) legislation — rules, regulations, by-laws, orders, and directives made under an Act's authority.
3. Fresh drafting — a new Act on a new subject.
4. Amending drafting — changing an existing Act (amendment bills).
5. Codification and consolidation — gathering scattered law into one code (Nepal's Muluki Civil Code, 2074 and Muluki Criminal Code, 2074 as the great modern example), or restating it without changing content (consolidation).