Both the 1968 and 2014 Building Code address access control devices on required egress doors. Both codes are similar in that they may require commissioner approval for such a device and have a list of additional safeguard that must be met including but not limited to:
When the required safeguard are met the commissioner may permit the installation of an access control device. This allowance is permitted on a case by case basis and past installation is not a guarantee for future approval.
Keep your workers posted before they miss their deadline.
What you need to know when Local Laws 92 & 94 go into effect.