then I would say the garment has a doctrine to it. And the garment has policies from the church.1. archaic : teaching, instruction.
a : something that is taught.
b : a principle or position or the body of principles in a branch of knowledge or system of belief : dogma.
The doctrine is around what it represents and what it means to us symbolically, and the covenants that it includes.
The policy is around how often to wear it, the specific sizes that the church has approved and makes in it's own distribution centers, and how the bishops are to ask the question in a TR interview.
The doctrine won't change much about it, even if our understanding of it will.
The policies will change as the church sanctions policy changes from the counsels and committes that agree to make changes to it.
We don't have the authority to change the policy for the church.
We only have the choice on how we decide to interpret it and adhere to it and answer to it.