The 87 BOPP members voted to make the move to the HTA, which will take effect from 1 January 2012. The HTA hopes that its influence will enable the accreditation scheme to strengthen its links with retailers.
HTA business development manager Tim Briercliffe said: "With new standards and customer demands arising all the time, it will be an important role for the HTA to keep retailers on board.
"We want to ensure that BOPP meets their needs but - critically - in a way that works for growers and packhouses, too," he added.
The scheme will be managed by Anna Cook, who previously worked for ADAS as a BOPP inspector and Tesco as a technologist.
BOPP members who are also HTA members will no longer have to pay a subscription fee.