Texas Parks and Wildlife Code - PARKS & WILD § 31.032. Numbering Location and Visibility;  Exemption;  Decal

(a) The owner of a vessel shall paint on or attach to each side of the forward half of the vessel the identification number and a registration decal in the manner prescribed by the department.  The number shall read from left to right and shall be of block characters of good proportion of not less than three inches in height.  The numbers shall be of a color which will contrast with the hull material of the vessel and so maintained as to be clearly visible and legible.

(a-1) On a vessel configured so that a number on the hull or superstructure is not easily visible, the number must be painted on or attached to a backing plate that is attached to the forward half of the vessel so that the number is visible from each side of the vessel.

(b) The owner of a vessel required to be numbered under this subchapter and documented by the United States Coast Guard is not required to attach an identification number as required by Subsection (a).

(c) The commission shall adopt rules for the placement of the registration decal in an alternate location for antique boats.  In this subsection, “antique boat” means a boat that: