The process of enacting a piece of legislation.
This documentary provides an example of a piece of legislation being enacted by the U.S. Congress by describing how HR 6161 - a bill amending the Clean Air Act - goes through the processes of conception, committee amendment and final passage.
![An Act of Congress [Doc/discussion] - H.R. 6161 -- 1977](https://img.youtube.com/vi/J6ivrax1JZc/hqdefault.jpg)