U.S. immigration policies regarding H-1B visas required employers to file an amended H-1B petition when there was a significant change in the employee's work location. Failure to do so could potentially lead to H-1B revocation or other legal consequences.

USCIS may revoke an H-1B petition at any time, even after the expiration of the petition, subject to the conditions set forth in Title 8, Code of Federal Regulations (8 CFR) section 214.2(h)(11) (iii)(A). 8 CFR 214.2(h)(11)(iii)(A), indicates that:

Grounds for revocation: The director shall send to the petitioner a notice of intent to revoke the petition in relevant part if he or she finds that:

(1) The beneficiary is no longer employed by the petitioner in the capacity specified in the petition, or if the beneficiary is no longer receiving training as specified in the petition; or

(2) The statement of facts contained in the petition or on the application for a temporary labor certification was not true and correct, inaccurate, fraudulent, or misrepresented a material fact; or

(3) The petitioner violated terms and conditions of the approved petition; or

(4) The petitioner violated requirements of section 101(a)(15)(H) of the Act or paragraph (h) of this section; or

(5) The approval of the petition violated paragraph (h) of this section or involved gross error.

8 CFR 214.2(h)(11)(i)(A) provides for the following regarding your obligation to notify USCIS of changes in the terms and conditions of employment:

The petitioner shall immediately notify the Service of any changes in the terms and conditions of employment of a beneficiary which may affect eligibility under section 101(a)(15)(H) of the Act and paragraph (h) of this section. An amended petition on Form 1-129 should be filed when the petitioner continues to employ the beneficiary. If the petitioner no longer employs the beneficiary, the petitioner shall send a letter explaining the change(s) to the director who approved the petition. However, H-2A and H-2B petitioners must send notification to DHS pursuant to paragraphs (h)(5)(vi) and (h)(6)(i)(F) of this section respectively.

8 CFR 214.2(h)(2)(i)(E) states the following regarding amended petitions:

Amended or new petition. The petitioner shall file an amended or new petition, with fee, with the Service Center where the original petition was filed to reflect any material changes in the terms and conditions of employment or training or the alien's eligibility as specified in the original approved petition. An amended or new H-1C, H-1B, H-2A, or H-2B petition must be accompanied by a current or new Department of Labor determination. In the case of an H-1B petition, this requirement includes a new labor condition application.

20 CFR, section 655.730(c)(4)(v) states that each LCA shall state the place(s) of intended employment. 20 CFR 655.715 defines an area of intended employment as:

Area of intended employment means the area within normal commuting distance of the place (address) of employment where the H-1B nonimmigrant is or will be employed. There is no rigid measure of distance which constitutes a normal commuting distance or normal commuting area, because there may be widely varying factual circumstances among different areas (e.g., normal commuting distances might be 20, 30, or 50 miles). If the place of employment is within a Metropolitan Statistical Area (MA) or a Primary Metropolitan Statistical Area (PMSA), any place within the MSA or PMSA is deemed to be within normal commuting distance of the place of employment; however, all locations within a Consolidated Metropolitan Statistical Area (CMSA) will not automatically be deemed to be within normal commuting distance. The borders of MSAs and PMSAs are not controlling with regard to the identification of the normal commuting area; a location outside of an MSA or PMSA (or a CMSA) may be within normal commuting distance of a location that is inside (e.g., near the border of) the MSA or PMSA (or CMSA).