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B.  May be operated with assistance of the service brakes or  |  | other source of power, provided that failure of the service  |  | brake actuation system or other power assisting mechanism does  |  | not prevent the parking brakes from being applied; |  
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 |   | | C.  Must be designed so that, once applied, they remain  |  | applied with the required effectiveness despite leakage or  |  | exhaustion of any source of energy; |  
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 |   | | D.  May share the same brake drums, brake shoes and lining  |  | assemblies, brake shoe anchors and mechanical brake shoe  |  | actuation mechanisms associated with the wheel brake  |  | assemblies used for service brakes; and |  
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 |   | | E.  If the means of applying the parking and service brakes  |  | are connected, must be constructed so that failure of one  |  | part does not leave the vehicle without operative brakes. |  
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 |   |  | Sec. 23.  29-A MRSA §1904, sub-§4, ¶B, as enacted by PL 2003, c. 452,  |  | Pt. Q, §21 and affected by Pt. X, §2, is amended to read: |  
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 |   | B.  A motorcycle or motor-driven cycle must have one mounted  |  | headlight. |  
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 |   |  | Sec. 24.  29-A MRSA §1904, sub-§6, as enacted by PL 1993, c. 683, Pt.  |  | A, §2 and affected by Pt. B, §5, is amended to read: |  
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 |   |  | 6.  Motorcycle.  A motorcycle or motor-driven cycle that does  |  | not have an adequate beam for headlights is restricted to daytime  |  | operation. |  
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 |   |  | Sec. 25.  29-A MRSA §1913, sub-§3, as enacted by PL 1993, c. 683, Pt.  |  | A, §2 and affected by Pt. B, §5, is amended to read: |  
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 |   |  | 3.  Motorcycles.  A motorcycle or motor-driven cycle must be  |  | equipped with a rear view mirror mounted and adjusted to afford  |  | the operator a clear, reflected view of the highway in the rear  |  | for a distance of at least 200 feet. |  
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 |   |  | Sec. 26.  29-A MRSA §2052, sub-§5, ¶B, as enacted by PL 2003, c. 452,  |  | Pt. Q, §31 and affected by Pt. X, §2, is amended to read: |  
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 |   | B.  Bicycles or other nonmotorized traffic, scooters, or  |  motorized bicycles or tricycles, or motor-driven cycles. |  
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 |   |  | Sec. 27.  29-A MRSA §2062, last ¶, as enacted by PL 1993, c. 683, Pt. A,  |  | §2 and affected by Pt. B, §5, is repealed. |  
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