What are the examples of import quota of non tarrif barrier?

Import quotas are a type of non-tariff barrier that limit the quantity of specific goods that can be imported into a country. Examples include the U.S. import quota on sugar, which restricts the amount of sugar that can enter the country to protect domestic producers, and the European Union's quotas on certain agricultural products, like dairy and beef, to manage market stability. These quotas can create scarcity and higher prices for consumers while supporting local industries.