(a) During the first inspection of all boilers, the inspector shall stamp the Texas boiler number, except as provided for in subsections (c) and (d), as near to the original ASME code name plate and required information as practicable.
(b) The stamping shall consist of the letters "TX" and directly to the right of the TX shall be stamped the Texas boiler number with a five point star stamped immediately adjacent to the first and last digit of the Texas boiler number.
(c) All hard stamping shall be accomplished by low stress steel dies 5/16 inch (8 millimeters) high and shall be arranged as shown in §65.615, Exhibit 1.
(d) In addition to the stamping:
  (1) the corrosion-resistant metal tag shall be applied, as permanently as practicable, to the external jacket or other covering where the surface temperature exceeds 200 degrees Fahrenheit (93.3 degrees Celsius), or
  (2) the Texas boiler number decal shall be applied where the surface does not exceed 200 degrees Fahrenheit (93.3 degrees Celsius).
(e) The following types of boilers are exempt from the stamping requirements of subsection (c), ASME code name plates stamped with the HLW designator, cast iron sectional boilers, cast aluminum sectional boilers, water tube boilers with cast headers, and other types of boilers that will be damaged by direct impression stamping.
  (1) These boilers shall be identified with the Texas boiler number decal or corrosion-resistant tag; and
  (2) The Texas boiler number decal or corrosion-resistant tag shall be applied where the surface does not exceed 200 degrees Fahrenheit (93.3 degrees Celsius).
(f) Nonstandard boilers shall be identified by the Texas boiler number as described in subsection (b), with an exception that the Texas boiler number decal shall not be applied. The letters "TEXAS SPECIAL" or "TX SPCL" shall identify nonstandard boilers and shall be stamped directly above the Texas boiler number.

Source Note: The provisions of this §65.71 adopted to be effective June 15, 2015, 40 TexReg 3121; amended to be effective February 15, 2019, 44 TexReg 583