Inde­pen­dent ver­i­fi­ca­tion of EPDs is stip­u­lat­ed by ISO 14025 and EN 15804, and indi­cates that the EPD has been test­ed and approved by an inde­pen­dent expert (ver­i­fi­er) pri­or to pub­li­ca­tion. The review con­tains the fol­low­ing criteria:
Plau­si­bil­i­ty
Com­plete­ness
Con­sis­ten­cy
Using the EPD-Online Tool, the man­u­fac­tur­er sub­mits its EPD to the IBU to be ver­i­fied. The IBU selects a ver­i­fi­er from the ver­i­fi­er com­mit­tee and assigns the EPD, allow­ing the required doc­u­ments (EPD, back­ground report, or oth­er addi­tion­al ver­i­fi­ca­tion doc­u­ments, if pos­si­ble) to be made avail­able to the ver­i­fi­er. In the event of ques­tions or dis­crep­an­cies, the ver­i­fi­er con­tacts the man­u­fac­tur­er so that the EPD can be revised. If all of the data is cor­rect, the ver­i­fi­er releas­es the EPD so that it can be pub­lished by the IBU. The inde­pen­dence of review­ers is very impor­tant to the IBU, and there­fore the IBU, rather than the man­u­fac­tur­er, selects the ver­i­fi­er. For this rea­son, the ver­i­fi­ca­tion costs are not paid from the man­u­fac­tur­er to the ver­i­fi­er, but rather, the IBU charges a lump sum and pays the man­u­fac­tur­er for the verification.