Not sure what your project is but it sounds like multi-family since you refer to "Type A". A little refresher may be in order here. The IBC identifies Accessible, Type A and Type B dwelling units and refers you to ANSI A117 (chapter 10) for requirements, including bathrooms. In addition ANSI A117 identifies "Option A" (least restrictive) and "Option B" (most restrictive) for bathroom clearances. The "options" provides for units with multiple bathrooms, giving you the option of all bathrooms meeting Option A OR one bathroom meeting Option B. Now that were confused the BEST reference I have ever found for residential accessibility is the Fair Housing Act Design Manual which is available online for a free download or is available in "hard copy" for $5.00 (highly recommend the hard copy), just Google "Fair Housing Act Design". Hope this helps you out.
Ken