Which is not a possible penalty for failing to provide workers compensation coverage?

The option regarding the revocation of the employer's license is not a typical penalty that one would encounter for failing to provide workers' compensation coverage. While fines and increased insurance premiums are common consequences, the revocation of an employer's license, though it can happen for various violations, is not specifically tied to workers' compensation issues. Employers may face fines and an increase in premiums as a result of non-compliance because it directly impacts the risk assessment for insurers.

Additionally, mandatory participation in a state program could be a consequence of failing to provide proper coverage if the employer is required to make up for their lack of compliance through state-sponsored programs for uninsured workers. Hence, the revocation of the license is not a standard or prescribed penalty in this context, making it the correct choice for what is not a possible penalty for failing to provide workers' compensation coverage.