The tarmac tower controller has no control certificate.

What you want to ask is whether the tarmac tower controller has no control certificate. You can't. According to the Civil Aviation Administration, the apron controller needs to hold the apron controller license to carry out control work on the apron, and the case apron controller needs to hold the apron controller license, driver's license and other documents to carry out control work on the apron, so a control certificate is needed.