The training of health care assistants may be provided either:

(1) Under a licensed physician, osteopathic physician, podiatrist or certified registered nurse with prescriptive authorization, who shall ascertain the proficiency of the health care assistant; or under a registered nurse, physician's assistant, osteopathic physician's assistant, health care assistant, or LPN acting under the direction of a licensed physician, osteopathic physician, podiatrist or certified registered nurse with prescriptive authorization who shall be responsible for determining the content of the training and for ascertaining the proficiency of the health care assistant; or

(2) In a training program provided by a post-secondary institution registered with the Washington state council for post-secondary education, or a community college approved by the Washington state board for community college education, or a vocational education program approved by the superintendent of public instruction, or in a private vocational school registered with the Washington state commission on vocational education, or in a program or post-secondary institution accredited by an accrediting agency recognized by the U.S. Department of Education.