At the current growth rate the number of truck stops offering bulk Diesel Exhaust Fluid at the pump will reach the 1,000-location mark by mid-February 2013, reports DEF Tracker.

Locations are now coming online at an average of more than two per day.

There was no movement in the U.S. and Canadian national DEF pump prices between November and December, after a relatively stable period of raw material pricing. The U.S. average remained at $2.79 per gallon and the Canadian at CAD$0.80 per liter in November and December.

Both the national U.S. average for less than full truck load bulk deliveries and tote refills of DEF recorded marginal decreases between November and December, falling by one cent and two cents per gallon respectively.