Final answer:
When parking on a curb or the side of a road, it is not necessary to use the turn signal. Check local laws and regulations for any specific requirements.
Step-by-step explanation:
When parking on a curb or the side of a road, it is not necessary to use the turn signal. The turn signal is typically used to indicate a change in direction or lane when driving, and not for parking. However, it is important to check local laws and regulations, as some jurisdictions may require the use of a turn signal when parking.