Some people seem to equate CC&Rs with HOAs. They are not the same thing.
CC&Rs are bound to the property title and are not changeable. They can and do frequently exist with non-HOA properties. Most CC&Rs are common sense items (no mining, no raising of livestock, etc.) but one needs to read them carefully.
HOAs are private contractual entities. PRB-1 does not "overrule" them. The property owner agrees to abide by them when he/she buys the house.
HOA rules and regulations are established by the HOA and can be altered by them at will.
Not entirely true. CC&R's are land use restrictions spelling out what can and cannot be done on a property. HOA's are a "governing" body to enforce the CC&R rules and regulations, not "established" by them (HOA). They also generally maintain, usually in conjunction with a professional management company, the common areas of a community with funds provided by community members' dues.
CC&R's CAN be changed by a varying percentage majority vote by the community members. The HOA cannot change the CC&R's "at will", but can provide exceptions or alterations of a CC&R to a homeowner that applies for one through the approval process of an Architectural Committee (if the CC&R's provide for one) of the HOA.
It's important to note that CC&R's are not "boilerplate", and provisions can vary widely between all parcels of land. Before purchasing a property, read and understand them carefully to make sure you agree with all the regulations. Not doing your due diligence can result in a nightmare of problems.
73, Bob K7JQ