Table 6.3 – Interior Accessible Routes
Current Guidelines:  
4.3.2  Location.

(1) At least one accessible route within the boundary of the site shall be provided from public transportation stops, accessible parking and accessible passenger loading zones, and public streets or sidewalks to the accessible building entrance they serve.  The accessible route shall, to the maximum extent feasible, coincide with the route for the general public.

Final Revised Guidelines:  
206.3 Location.  Accessible routes shall coincide with or be located in the same area as general circulation paths.  Where circulation paths are interior, required accessible routes shall also be interior.

Model Codes & Standards
IBC 2000:  Section 1104.5 has an equivalent requirement for location of accessible routes.

IBC 2003:  Section 1104.5 has an equivalent requirement for location of accessible routes.