# Terms and definitions.
**CFR Correction**
In Title 47 of the Code of Federal Regulations, parts 0 to 19, revised as of October 1, 2005, on page 474, § 2.1 is corrected by adding the following definitions to read as follows:
§ 2.1
*Harmful Interference.* Interference which endangers the functioning of a radionavigation service or of other safety services or seriously degrades, obstructs, or repeatedly interrupts a radiocommunication service operating in accordance with [the ITU] Radio Regulations. (CS)
*High Altitude Platform Station (HAPS).* A station located on an object at an altitude of 20 to 50 km and at a specified, nominal, fixed point relative to the Earth. (RR)