Are 'Extra Work Order' and 'Additional Work Authorization' different or same one in different names?

Question

if diffrent, who (A project manager or a field superintendent) signs which ('Extra Work Order' or 'Additional Work Authorization') ?

Answer 1

EXTR WORK ORDER -ISSUED BY PROJECT MANAGER FROM THE PROJECTS CONSULTANT OFFICE ISSUED AFTER PERMISSION FROM THE CLIENTS OFFICE. FOR WORK NOT INCLUDED IN BOQ , SPECIFICATION AND IFC DRAWINGS.THIS WORK WILL BE PAID AS ITEM OR LUMPSUM OR MEASURED QUANTITY TAKING PR RATA BASIS AS PER THE CLIENTS REQUIREMENT .

ADDITIONAL WORK AUTHORIZATION - THE CONTRACTOR SUBMITS A DETAIL MEASUREMENT STATING THAT THE QUANTITTIES AS MENTIONED IN BOQ ARE VERY LESS COMPARING TO THE SHOP DRAWINGS AND HENCE ASKS PERMISSION TO THE CONSULTANT FOR ISSUE OF AUTHORIZATION TO CARRY OVER THE WORK TO COMPLETE AS PER SHOP DRAWINGS AND WILL BE PAID ACCORDING TO THE BOQ UNIT RATE.