Additional Work Authorization (Form #81) at a glance
What it is: Additional Work Authorization, Form #81.
Who signs: The Owner and the Contractor each sign.
A filled-in Additional Work Authorization (Form #81) example: an owner approves added work

How to fill out Additional Work Authorization (Form #81), box by box
Owner, job and existing contract
Charge for above work and payment
Signing as owner and as contractor

The Owner signs on the Authorized Signature line marked (OWNER SIGNS HERE) and writes the Date.
The Contractor agrees to furnish labor and materials - complete in accordance with the specifications, at the started price, and signs on the Authorized Signature line marked (CONTRACTOR SIGNS HERE) with the Date.
Write the CHANGE ORDER NO.
Sources
[1] Additional Work Authorization, Form #81 (the Official source link on this page).


