What to know
Updates that have been made to this guidance are below.
February 2017
- Minor content edits were made to improve clarity.
- Spelling and punctuation were corrected.
- Tables were formatted to be easily read by screen readers in compliance with the Americans with Disabilities Act (ADA).
- Numbered or itemized items in paragraph format were converted to vertical numbered or bulleted lists in compliance with ADA.
- Link text was changed to comply with ADA.
- Live links were updated; dead links are indicated.