Though I can't speak to exactly the regulatory requirements which affect that aircraft, in general, it'll be on one, or the other side, of a line. That line is a type certificate, or not. If it was factory made, it was probably done so, so as to conform to a type certificate. Conformance to a type certificate will include specified maintenance requirements (read organization, and licensed mechanic). Local regulations may allow some variation from this, but that's probably a good starting point. Reading the C of A, or equivalent, for the aircraft, should also point you to the requirements for many things about the aircraft.
It is important that owners and pilots understand the regulatory expectations, particularly for maintenance, for aircraft they own or fly. Sadly, this is a less taught topic to new pilots.
Good for asking cpl4....