Laws vary from state to state, but many states have laws (statutes) enacted by their state legislatures that determine which persons have the legal authority to consent to medical treatments, medical procedures, and vaccinations (also known as immunizations or inoculations) of minor children (generally under the age of 18).
In Hawaii, the consent to medical treatment, procedures, and vaccinations for minor children is generally governed by the parent or legal guardian. Hawaii Revised Statutes §577-1 allows minors who are 14 years of age or older to consent to medical and dental treatment if they understand the risks and benefits, although this does not explicitly mention vaccinations. Additionally, Hawaii has specific statutes regarding vaccinations, such as Hawaii Revised Statutes §302A-1154.5, which allows minors to consent to vaccinations recommended by the Centers for Disease Control and Prevention for sexually transmitted diseases if they are of the age recommended for the vaccination. It's important to note that there may be other specific circumstances under which a minor can consent to their own medical treatment, such as when they are legally emancipated or in cases of emergency where parental consent cannot be reasonably obtained. As with all legal matters, consulting with an attorney for the most current and applicable laws is advisable.