This August 4, 2003 USCIS memo by William Yates and Janis Sposato provides CIS field offices with guidance on processing Form I-485, Application to Register Permanent Residence or Adjust Status, when the beneficiary of an approved Form I-140, Petition for Immigrant Worker, is eligible to change employers under §106(c) of AC21. The memo added section 20.2(c) to the AFM.