Amendments en bloc: (1) clarify that the implementation of model opportunity-to-learn standards by States, local educational agencies, and schools is voluntary and not mandated; (2) simplify the definition of opportunity-to-learn standards; (3) limit the paperwork burden on local educational agencies and schools; (4) clarify that model opportunity-to-learn standards cannot be enforced through litigation; and (5) recognize that model opportunity-to-learn standards can be a useful resource for school improvement.