The Hampton Roads Planning District Commission (HRPDC) supports the provisions for rainwater non-potable water systems as set forth in the proposed regulation amending the Virginia Uniform Statewide Building Code, 13VAC5-63-210 R (75) and 13VAC5-63-320 (19).  HRPDC's September 19, 2013 comment letter is available at: http://www.hrpdc.org/uploads/docs/RainwaterHarvesting_Building%20Code%20Comment%20Ltr.pdf