Who is the author RA 5487?

There is no author named "RA 5487". "RA 5487" refers to a specific Philippine law, the "Clean Air Act of 1999".

Laws are not authored by individuals. They are created through a legislative process, meaning they are written and approved by a group of elected officials (in this case, the Philippine Congress).

Therefore, there is no single author for RA 5487 (the Clean Air Act).