When must a certification of mold remediation be provided after the work is complete?

The correct timeline for providing a certification of mold remediation is no later than 10 days after the work is completed. This requirement is established to ensure transparency and compliance with health and safety standards. The certification serves as proof that the mold remediation was conducted properly and that the property is now safe for occupancy. By enforcing a 10-day deadline, the regulation aims to protect the buyer and the general public from potential health risks associated with lingering mold. This timely provision of documentation also reflects the importance of prompt communication between contractors and property owners. It is crucial for maintaining trust and accountability within real estate transactions. Other timelines presented in the question do not meet the regulatory standards for this process.