Following a six-month delay in implementation, Washington finally began enforcement of its 2009 energy code on January 1, 2011.

The Vermont Commissioner of Public Safety and the Electricians Licensing Board announced the adoption of the Vermont Electrical Safety Rules 2011, effective June 1, 2011.

On June 23, 2011, the Rhode Island Building Code Legislative Oversight Committee approved the recommendation of the State Building Code Standards Committee to amend the Rhode Island Electrical Code (SBC-5) by updating the referenced document from the 2008 National Electrical Code (NEC) to the 2011 NEC.

All local jurisdictions in Oklahoma that issue permits, inspect, and control the construction of 1 and 2 family dwellings are required as of Friday, July 15, 2011 to begin enforcement of the 2009 International Residential Code (IRC) as the minimum construction standard.

On June 28, 2011, New York City Mayor Michael R. Bloomberg signed Introductory Number 64-A (Intro 64-A). Intro 64-A is legislation passed by the City Council on June 14, 2011 that updates the current NYC Electrical Code by adopting the 2008 National Electrical Code with local amendments.

The New Hampshire State Building Code Review Board recently voted to adopt the 2011 National Electrical Code with one amendment.

The several jurisdictions in Southern Nevada have begun enforcement of the next edition of construction codes, including the Southern Nevada Electrical Code, based on the 2008 National Electrical Code.

On February 3, 2011 the City of St. Louis, MO advanced their electrical and fire safety by moving from the 1999 NEC and adopting the 2011 NEC effective immediately by (Ordinance #68831) with several amendments.

On June 17, 2011 the State of Minnesota approved the adoption of the 2011 National Electrical Code (NEC) without amendment.

Source: NEMA