Preliminary PSD Codes (Political Subdivision Codes) – Due to changes in Pennsylvania’s Earned Income Tax legislation under Act 32 of 2008, the PSD codes have been updated to designate each of the 69 tax collection districts, along with the school districts and municipalities therein.  Act 32 of 2008 requires that employers and tax officers utilize political subdivision (PSD) codes prescribed by the DCED.  PSD codes have been designed to identify the municipalities and school districts for each tax collection district and aid in ensuring that employee Earned Income Tax withholdings are remitted and distributed to the proper taxing authority.  These codes specifically correlate to the implementation of Act 32 of 2008, Earned Income Tax Reform.  The legislation requires all taxing authorities that implement an earned income tax to comply with all applicable regulations by January 1, 2012.  Tax Collection Districts may opt for early implementation by January 1, 2011.