(a) To assist F6 Type 6 and 6A, and F2 Type 7 permittees in routing, the department will provide a list of bridges not traversable. However, it is the responsibility of the permittee not to use any “R” restricted bridge which may be on the route the vehicle is travelling, respective of whether the bridge is on the list provided by the department. The section of State highway upon which a listed bridge is located will not be traversable between the two nearest intersecting State highways which encompass that section of highway. However, specific authorization for the use of a portion of any such excluded State highway may be considered by the Department of Transportation.

(b) If the excluded section of State highway is necessary for obtaining the permittee's destination, then on the permit application, the permittee must state the anticipated route for which the authorization is sought. This anticipated route, shall include, but is not limited to, any detour route, when such detour is necessary, around the bridge which is not traversable. Reasonable allowance for a deviation on State highways from the anticipated route is permitted, if the deviation is required to continue the necessary operation of that vehicle or to obtain that vehicle's destination. Reasonable deviation shall not exceed 1,500 feet from the anticipated routing.

When the anticipated routing under the F6 Type 6 or Type 6A permit includes specific highways not under the jurisdiction of the commissioner, then the county, municipality, or municipalities having jurisdiction over the specified highway must be notified by the applicant. The county, municipality, or municipalities will have at least 15 days to comment on the anticipated routing to the applicant.

If a permit holder operates a vehicle or combination of vehicles in violation of such routing restrictions, the Type 6, Type 6A or Type 7 permit shall be void as of the next day. All permits issued to the vehicle in question shall not be reissued for a period of 12 months.

A sanivan vehicle for which a permit has been issued pursuant to this Subpart, is authorized to operate on public highways in accordance with weight and bridge limitations in such permit, and with posted temporary or permanent highway or bridge restrictions. Such specific highway or bridge limitations preempt the appropriate permit authorizations.

A agricultural vehicle for which a permit has been issued pursuant to this Subpart, is authorized to operate on state highways in accordance with any weight limitations specified in such permit and in accordance with posted temporary or permanent highway or bridge restrictions. (Note: This permit is only available for F1, F2 and F3 permits.) Such specific highway or bridge limitation preempt the permit authorizations. This permit shall be valid for four continuous months from date of issuance.