32 CFR 636.23 - Turning movements.
(a) U-turns are prohibited on all streets in the cantonment area.
(b) Right-turns will be made from a position as close to the right edge or right curb of the roadway as possible.
(c) Left-turns will be made from a position as close to the center line as possible or from a left turn lane, if available.
(d) All turns will be signaled continuously beginning not less than 100 feet prior to the turn.