1. (a) A unit exceeding nine feet in width, 14 feet in height, or 65 feet in length is restricted to daylight movement only. Movement is prohibited when:

   1. (1) visibility is reduced to less than 2/10 of one mile; or
   2. (2) the road surface is hazardous due to weather conditions (such as rain, ice, sleet, or snow) or highway maintenance or construction work.

2. (b) A unit exceeding 175,000 pounds gross weight must:

   1. (1) have front and rear escort vehicles to prevent traffic from traveling beside the unit as it crosses a bridge;
   2. (2) cross all multi-lane bridges by centering the unit on a lane line;
   3. (3) cross all two-lane bridges in the center of the bridge; and
   4. (4) cross each bridge at a speed not greater than 20 miles per hour.
3. (c) A unit exceeding 12 feet in width must be centered in the outside traffic lane of any highway that has paved shoulders.
4. (d) A permitted unit may not cross any load restricted bridge.

5. (e) A single-trip permit:

   1. (1) is limited to a maximum of seven consecutive days;
   2. (2) is routed from the point of origin to the point of destination and has the route listed on the permit; and
   3. (3) allows the unit to be returned to the point of origin on the same permit, provided the return trip is made within the time period stated in the permit.

6. (f) A time permit:

   1. (1) is effective for three consecutive months (For example, a permit issued with a beginning date of January 15 will terminate on April 14, or a permit issued with a beginning date of July 1 will terminate on September 30); and
   2. (2) allows the unit to travel on all state-maintained highways.

7. (g) An annual permit for an oil field rig-up truck allows the unit to travel:

   1. (1) on all state-maintained highways, within not more than 12 designated districts; and
   2. (2) at night, provided the unit does not exceed nine feet in width.

Source Note:The provisions of this §28.46 adopted to be effective October 13, 1994, 19 TexReg 7821.