MS HB669

Allows multi-disciplinary firms to include architects, landscape architects, and engineers as long as at least one active member or stockholder holds a certificate to practice architecture in Mississippi.

Requires that in firms with landscape architect ownership, at least two-thirds of partners, stockholders, directors, officers, and members must be registered architects or professional engineers, with landscape architects owning no more than one-third of the business entity.

Mandates that any contract for architectural services must be executed by a partner or officer with authority to bind the firm, and a registered architect in responsible control must exercise professional judgment and affix their name and seal to all architectural documents.

Permits business entities to use combined titles such as "architects and landscape architects" or "engineers, landscape architects and architects" in their firm name, provided all announcements and materials identify each member's professional designation.

Effective date of July 1, 2025.