This is how many wrong answers begin.
Directly from the PTS, page 8:
The instrument rating applicant is required by 14 CFR part 61 to provide an airworthy, certificated aircraft for use during the practical test. Its operating limitations must not prohibit the Tasks required on the practical test. Flight instruments are those required for controlling the aircraft without outside references. The required radio equipment is that which is necessary for communications with air traffic control (ATC), and for the performance of two of the following nonprecision approaches: very high frequency omnidirectional range (VOR), nondirectional beacon (NDB), global positioning system (GPS) without vertical guidance, localizer (LOC), localizer-type directional aid (LDA), simplified directional facility (SDF), or area navigation (RNAV) and one precision approach: instrument landing system (ILS), GNSS landing system (GLS), localizer performance with vertical guidance (LPV) or microwave landing system (MLS). GPS equipment must be instrument flight rules (IFR) certified and contain the current database. Note: A localizer performance with vertical guidance (LPV) approach with a decision altitude (DA) greater than 300 feet height above terrain (HAT) may be used as a nonprecision approach; however, due to the precision of its glidepath and localizer-like lateral navigation characteristics, an LPV can be used to demonstrate precision approach proficiency (AOA VI Task B) if the DA is equal to or less than 300 feet HAT.