What does the term "shall" indicate in the context of S500 and S520?

In the context of S500 and S520, the term "shall" indicates mandatory or regulatory requirements. When these documents use "shall," it signifies that the practices or requirements laid out are not merely suggestions; they are essential for compliance with industry standards and protocols. This means that professionals in the field are expected to adhere to these stipulations to ensure safety, effective remediation, and the best outcomes in microbial remediation processes.

Mandatory requirements are crucial for maintaining consistency and effectiveness in procedures related to water damage restoration and mold remediation, as outlined in these standards. By distinguishing between what is required (indicated by "shall") and what is recommended or optional (indicated by other terms), the IICRC provides clear guidance on best practices in the industry. This clarity helps professionals understand the boundaries of acceptable practice and legal compliance, which is vital in protecting both the remediation professional and the affected parties.