Mechanical — Addition and/or Alterations

FOR THE INSTALLATION OF REGISTERS, DIFFUSERS, WITH ASSOCIATED DUCTWORK TO BE INSTALLED IN ACCORDANCE WITH THE MANUFACTURER’S SPECIFICATIONS. FOR USE AS PREVIOUSLY APPROVED. ALL WORK TO BE DONE PER APPROVED PLANS. IF FIELD CONDITIONS VARY CONTACT DESIGN ENGINEER PRIOR TO THE START OF ANY WORK. SEPARATE PERMITS TO BE OBTAINED FOR ALL OTHER WORK.