You must contact BLM:
(a) At the times specified in your grant;
(b) When your use requires a substantial deviation from the grant. You must obtain BLM's approval before you begin any activity that is a substantial deviation;
(c) When there is a change affecting your application or grant, including, but not limited to, changes in:
(1) Mailing address;
(2) Partners;
(3) Financial conditions; or
(4) Business or corporate status;
(d) When you submit a certification of construction, if the terms of your grant require it. A certification of construction is a document you submit to BLM after you have finished constructing a facility, but before you begin operating it, verifying that you have constructed and tested the facility to ensure that it complies with the terms of the grant and with applicable Federal and state laws and regulations; or
(e) When BLM requests it. You must update information or confirm that information you submitted before is accurate.