American Football NCAA Rule 1-2-1-a-d, h, k and l
a. All field-dimension lines shown must be white and 4 inches in width (Exceptions: Sidelines and end lines may exceed 4 inches in width, goal lines may be 4 or 8 inches in width, and Rule 1-2-1-g).
d. White field markings or contrasting decorative markings (e.g., team names) are permissible in the end zones but shall not be closer than four feet to any line.
h. Advertising is prohibited on the field except as follows:
1. For postseason and neutral-site games the title sponsor whose name is associated with the name of that game may advertise on the field, with the restriction that there be a maximum of three such advertisements: a single advertisement centered on the 50-yard line and no more than two smaller flanking advertisements. These advertisements must adhere to paragraph f above. No other advertisements, either by the title sponsor or by any other commercial entity, may be on the field.
2. The NCAA Football logo is permitted.
3. If a commercial entity or individual has purchased naming rights to the stadium, facility, or field, that entity’s or individual’s name/company-specific font or logo may be painted on the field in no more than two of the flanking locations and will count in the total of the maximum of four flanking locations allowed.
k. The two hash marks are 60 feet from the sidelines. Hash marks and short yard-line extensions shall measure 24 inches in length.
l. Nine-yard marks 12 inches in length, every 10 yards, shall be located nine yards from the sidelines. They are not required if the field is numbered according to Rule 1-2-1-i.