After March 1, all building plans in Virginia must adhere to the 2009 code that was adopted a year ago. Among the code changes are: mandatory programmable thermostats, at least half of lighting fixtures must use energy efficient bulbs, and a requirement for mounted kitchen fire extinguishers for single family homes without sprinkler systems.
Read more [1]
Links:
[1] http://www2.starexponent.com/news/2012/feb/16/new-building-codes-take-effect-ar-1693127/