Formatting AV scripts

What are 3 key things that this article says are important about formatting an AV script? 

1) There should be a standard font and margins for all scriptwriting
- Margins should be one inch on each edge of the page
- Courier New 12 point font

2) Each page will have a header including the page number at the top right margin, maybe followed by a period, like in screenplays.

3) Capitalize every word that isn't spoken!