If you have other medical insurance or another type of liability coverage such as an umbrella policy, you may be able to eliminate certain optional parts of rental car insurance. (autos.com)
Even if you don't own the vehicle and don't have car insurance, you may be able to omit many optional parts types of car rental insurance coverage. (autos.com)
Collision and comprehensive are optional parts of your policy — as opposed to liability insurance, which is usually mandatory and covers damage to other people's property and injury to other drivers. (compare.com)