Final answer:
The certificate for exemption to Louisiana window tint laws for private investigators is not transferrable and has an expiration period, which requires consulting current Louisiana statutes for exact years.
Step-by-step explanation:
The question is regarding the certificate for exemption to the Louisiana window tint laws applicable to licensed private investigators. In Louisiana, this specific certificate is not transferrable and expires after a certain number of years from the date it was issued. However, without current statutory information, I cannot provide the exact number of years after which the certificate expires. To obtain the most accurate and up-to-date information, one would need to refer to the latest Louisiana statutes or contact the appropriate state regulatory body that handles window tint exemptions for licensed private investigators.