State vs. national standards
Why your state's standards are the authoritative source.
"National" standards are models written by organizations or groups of states. States choose whether to adopt, adapt or ignore them. For example, many states adopted the Common Core State Standards, but several did not, and many have since revised them.
Professional organizations also publish national standards for their fields, such as physical education, the arts or school counseling. These guide practice but are usually voluntary.
When in doubt, use your state education agency's published standards and your district's guidance.