L.R.S. 48:252 was amended by the Louisiana legislature during its 2012 session to provide that the Department of Transportation and Development shall not issue any addenda materially modifying plans and specifications within 72 hours prior to the advertised time for opening of bids. If such addenda are issued within the 72-hour period, the opening of bids shall be extended. The statute previously specified a time period of 96 hours. Acts 2012, No. 195. The new law becomes effective August 1, 2012.