The definition of teacher qualification under the NCLB is that teachers demonstrate competence in their subjects, have a bachelor's degree in any subject and meet state licensing requirements. State licensing requirements are determined by the individual states themselves.
Under the new regulation, teachers in rural schools are permitted to teach in up to three subjects, as long as they are qualified in one of them. The teachers have three years to become qualified in the other subject or subjects that they teach.
Texas passed new rules in 2004 that relaxed its teacher standards by granting temporary licenses to applicants with no teacher training, and that a number of other states are implementing similar changes.