To change the business associated with your Site Safety Certificate you must submit the following via DOB NOW: Licensing
To remove the business associated with your certificate and have the registration designated for individual use you must submit the following via DOB NOW: Licensing
To add a business to your Site Safety Certificate you must submit your change via DOB NOW: Licensing.
To change your email address, home/business address, or telephone number(s) associated with your Site Safety Certificate, you must submit the following via DOB NOW: Licensing
If your Site Safety Certificate card has become lost or stolen, you must submit the following documents via DOB NOW: Licensing
All documentation must be submitted via DOB NOW: Licensing.
NOTE: Updated cards will be mailed to your home address.
Link: https://www.nyc.gov/site/buildings/industry/changes-to-site-safety-certificate.page