Costs associated with AAs are paid by the client. If the client requests AAs that will substantially change the job estimate (because they will incur extra chargeable time, for instance) then it's a good idea to have the client sign a new estimate that includes these additional charges.
Tips for handling Author's Alterations:
- Get written approval from all parties when submitting a project for printing.
- Consolidate all requested changes in writing and submit at one time.
- After changes are made, proofread everything carefully and get written approval once again before proceeding.

