Final answer:
Parallel parking requires a vehicle to be within a certain distance from the curb, commonly 30 centimeters, but this may vary by location.
Step-by-step explanation:
The question regarding parallel parking is focused on the rules and regulations of driving, which is typically taught in driver's education courses. The standard practice for parallel parking is to ensure your vehicle is within a certain distance from the curb. While regulations can vary by location, a common requirement is to park within 30 centimeters from the curb. However, this measurement may differ depending on local laws, so it's important to check specific rules for the area where you are driving.