All eBooks & Their Codes Click here to see added navigational features on our ebooks... Code Check 9th Edition (combination version) 2018 UPC & UMC, 2018 IRC & 2017 NEC Code Check Plumbing & Mechanical 5th Edition 2015 UPC & UMC, 2015 IRC Code Check Electrical 8th 2017 NEC Code CheckBuilding 4th 2015 IRC Code Check Collection eBook Bundle 2015 UPC & UMC, 2015 IRC, 2017 NEC Electrical Inspection of Existing Dwellings 2011 NEC