what would be an exception to the comity clause?

The Comity Clause, also known as the Privileges and Immunities Clause, is a provision in the United States Constitution that ensures that states must treat citizens of other states fairly and equally. While the clause generally promotes cooperation and comity between states, there are certain exceptions where states may impose restrictions or limitations on citizens from other states. Some exceptions to the Comity Clause include:

1. Residency Requirements: States can establish reasonable residency requirements for certain privileges or benefits, such as in-state tuition rates for public universities or eligibility for certain state-based programs or benefits. These requirements may differentiate between residents and non-residents, potentially limiting the privileges or benefits available to citizens of other states.

2. Professional Licenses: Each state has the authority to establish its own professional licensing requirements, which may differ from those of other states. This can impact professionals, such as lawyers, doctors, or teachers, who may need to meet additional criteria or obtain a separate license to practice their profession in a different state.

3. Voting Rights: While the Comity Clause generally protects the right to vote for citizens of other states, states can impose reasonable requirements for voting, such as residency requirements or voter identification laws. These requirements may affect citizens of other states who are temporarily residing in a specific state.

It's important to note that any restrictions imposed by states must be reasonable and not discriminate against citizens of other states in an arbitrary or unfair manner. The Supreme Court has the authority to decide whether a particular restriction or limitation is lawful under the Comity Clause.