What is the requirement for turn signal lamps on vehicles manufactured in 1960 or newer?

The requirement for turn signal lamps on vehicles manufactured in 1960 or newer specifies that there must be two turn signal lamps in the front, which can be either white or amber, and two in the rear, which should be red or amber. This regulation is designed to enhance visibility and safety on the road by clearly indicating the vehicle's intentions to other drivers.

Having two turn signals both in the front and rear allows for better communication of direction changes, reducing the likelihood of accidents. The requirement for color relates to common practices and standards in automotive lighting, with front lights typically using white or amber to ensure visibility, while rear lights use red or amber to denote any action taken by the vehicle. This approach ensures consistency across vehicles and promotes safety standards that are recognized and understood by all drivers.

The standards set for turn signals represent an essential aspect of vehicle design for traffic safety. Hence, the specification outlined in the correct choice reflects the necessary compliance for vehicles produced from 1960 onwards.