Md. Code Regs. 11.14.09.12

Current through Register Vol. 51, No. 20, October 4, 2024
Section 11.14.09.12 - Vehicle Glazing
A. As required under Federal Motor Vehicle Safety Standards, 49 CFR § 571.500"Low Speed Vehicles", all low speed vehicles shall be equipped with a windshield that conforms to the federal motor vehicle safety standard on glazing materials, 49 CFR § 571.205. Windshields of low speed vehicles must meet the ANSI/SAE Z26.1 -1996 specifications for either AS-1 or AS-4 glazing (incorporated by reference; see 49 CFR § 571.5). Safety glazing is marked with the manufacturer's trademark and the letters "AS" followed by a number from 1 through 16B. Only AS-1 or AS-4 composition may be used in the windshield. Safety glazing for 1966 and later models also has a glass manufacturer's model number or a DOT (Department of Transportation) code number. Any questions regarding glazing shall be referred to the Automotive Safety Enforcement Division of the Department of State Police.
B. Definitions.
(1) "Cloudiness" means any degree of visible discoloration or separation, except tinting that does not affect clear vision.
(2) "Critical area" means the normal windshield wiper sweep, except the area obscured by hood, fenders, or rearview mirror.
(3) "Non-critical area" means all windshield area outside the critical area.
(4) "Normal windshield wiper sweep" means the area of windshield cleaned by the windshield wiper, excluding return position on both passenger's and driver's side.
C. Proper Marking. Inspect glass for proper markings.

Procedures:Reject Vehicle If:
(1) Windshield-Inspect for AS-1 or AS-4 composition. Any windows, if so equipped, must contain safety glazing labeled AS-2, or other approved materials installed or permitted by the vehicle manufacturer for the appropriate application allowing for adequate visibility. (1) Windshield composition is other than AS-1 or AS-4. Any window is not equipped with safety glazing as required, or is equipped with other than approved materials installed or permitted by the vehicle manufacturer providing required visibility.
(2) Window on Driver's Side-Inspect operation of window at driver's side. Window shall open and close readily as designed even though the vehicle has approved turn signals. (2) Window on driver's side cannot be readily opened and closed as designed.
(3) Add on Tinting and Stickers.
(a) Low speed vehicles equipped with windows must have at least 35 percent light transmittance after the application of add on tint. When add on tint is applied to any side or rear window, the vehicle must be equipped with an outside rearview mirror on each side. Add on tint to windshield may not be below the AS1 line or below 5 inches from the top of the windshield, whichever is less. Add on tint may not be mirrored or have a one-way vision effect, may not be red, yellow, or amber in color, may not have a sparkling effect, or may not change to a color that is prohibited.
(b) All side and rear windows equipped with add on tint meeting the 35 percent light transmittance requirements, shall have labels affixed to the tint approved by the Division. These labels shall be 1/2 inch by 1 1/2 inch, containing the Maryland State Police shield, Maryland Department of Transportation logo, and marked 35 percent. Labels are to be located in close proximity to and not obscuring the glazing manufacturer's trademark and AS indicator. On the rear window, the label shall be affixed in the upper left corner as viewed from the outside. For vehicles equipped with unmarked glazing in side windows, the label shall be placed in the lower rear corner of window as viewed from the outside. Inspection and certification of add on window tinting will be performed as per established regulations.
(c) Inspect all glass for unauthorized material or conditions that obscure the driver's vision. Stickers, signs, posters, cards, or other nontransparent materials are to be placed on the windshield or rear window within a 7-inch square in the lower corner or upon the side windows of the vehicle to the rear of the driver, and so placed that the materials will not obstruct the driver's clear view of traffic. Agency Note: Materials placed on the windshield of a vehicle in compliance with security measures required by a federal or State government agency and approved by the Administration, are exempt from the requirements explained in this paragraph.
(a) Glazed surfaces contain any stickers not permitted by law or regulation.
(b) Tinting is not incorporated into the glazing except as noted in the procedures and as permitted by federal law.
(c) Driver's vision is obscured.
(d) Any glazing contains after-market material that causes a mirror or one-way vision effect or is a prohibited color.
(e) A vehicle is equipped with allowed add on tinting and is not equipped with an outside rearview mirror on each side.

D. Glazing Damage.

Procedures:Reject Vehicle If:
(1) Cracks, Chips, Discoloration. Inspect windshield and any windows, if so equipped, for damage and discoloration from both inside and outside of the vehicle.(1) Cracks, Chips, Discoloration. (a) There are cracks, discolorations, scratches, or conditions that interfere with the driver's view to the right or left. (b) Any window is broken or has exposed sharp edges. (c) Rear window is discolored or in a condition preventing driver from having a clear view 200 feet to the rear of the vehicle.
(2) Windshield. Inspect windshield for cracks, nicks, pits, chips, star breaks, half moons or bull's-eye fractures, discoloration, sharp edges, and wiper blade scratches. (3) Window Modification. Inspect all windows for modification. Modification of windshield or any side or rear windows of a low speed vehicle is prohibited.(2) Windshield. (a) Driver's Side.
(i) Cloudiness exceeds 1 inch from the top or sides or 1 inch into the critical area from the bottom. If the windshield is divided, the cloudiness may not exceed 1/2 inch from the center divider.
(ii) Critical area contains wiper blade scratches, severe enough to distort vision, or any one crack, nick, pit, chip, star break, or half moon or bull's-eye fracture in excess of 1/2 inch diameter or length, or any combination of individual cracks, nicks, pits, chips, star breaks, or half moon or bull's-eye fractures that cumulatively exceed 1/2 inch in diameter or length or any permanent condition other than listed above that significantly interferes with the driver's vision, for example, sand blasting or etching.
(iii) Non-critical area contains any one crack or combination of intersecting or individual cracks, which cumulatively exceed 1 inch diameter or length, or any permanent condition that significantly interferes with the driver's vision.
(b) Passenger Side.
(i) Cloudiness exceeds 2 inches from the top or outer edges or extends more than 2 inches into the critical area from the bottom. If the windshield is divided, the cloudiness may not exceed 1/2 inch from the center divider.
(ii) Critical area contains wiper blade scratches severe enough to distort vision, or any one crack, nick, pit, chip, star break, or half moon or bull's-eye fracture in excess of 1/2 inch diameter or length, or any combination of cracks, nicks, pits, chips, star breaks, or half moon or bull's-eye fractures which cumulatively exceed 1/2 inch diameter or length, or any permanent condition other than listed above which significantly interferes with the driver's vision.
(iii) Non-critical area contains any one crack or combination of intersecting or individual cracks, which cumulatively exceed 2 inches diameter or length, or any permanent condition that significantly interferes with the driver's vision.
(3) Modification. Windshield or any side or rear window has been modified from its original manufacturer's design.

Md. Code Regs. 11.14.09.12

Regulations .12 adopted as an emergency provision effective January 1, 2006 (33:4 Md. R. 349); emergency provision extended at 33:15 Md. R. 1275; emergency status expired December 28, 2006
Regulations .12 adopted as an emergency provision effective March 9, 2007 (34:9 Md. R. 824); emergency provision expired September 5, 2007
Regulations .12 adopted effective September 10, 2007 (34:18 Md. R. 1580)