I guess following paragraph will cause big uncertainty to Perm based I-485 if change employment. The Perm and I-140 sponsor employer mostly
likely does not respond to the DOL inquiry if he/she left the company for what ever reason. Welcome any analysis and feedback.
Revocation of Approved Labor Certifications
The DOL Perm rule, at 20 CFR 656.32 provides for the revocation of approved labor certifications by DOL if a subsequent finding is made that the certification was not justified. In such instances, DOL provides notice to the employer in the form of a Notice of Intent to Revoke an approved labor certification that contains a detailed statement of the grounds for the revocation and the time period allowed for the employer's rebuttal. The employer may submit evidence in rebuttal within 30 days of receipt of the notice. If rebuttal evidence is not filed by the employer, the Notice of Intent to Revoke becomes the final decision of the Secretary. If the employer files rebuttal evidence and DOL determines the certification should nonetheless be revoked, the employer may file an appeal under 20 CFR 656.26 within 30 days of the date of the adverse determination. If the labor certification is revoked, DOL will also send a copy of the notification to USCIS and the Department of State.