we rely on our 7901 california public utilities code to install these small wireless nodes in the public right of way, just like other place their telephone lines along and upon any public road or highway, in such points to in article 25 of the public works code wireless carriers to deploy congresswomen in the public right of way, including utility poles. tier one, tier two or tee three. tier three. the tier classification is based upon the number and size of antennas and the equipment it proposed to install. at&t submitted an application for a tier three facility on an existing pole at 4848 17th street. this is classified as a tier three because we propose to install two antennas that are greater than 3 inches in diameter, which is tier one facility, and that are not sill lynn /tkreu cal, which would categorize it as a tier two, but as a tier three because it needs three equipment enclosures in order to satisfy the frequencies that at&t /k*us /phers and network rides on. after the required public notice and hearing, appellants challenged that permit contended at&t failed to comply with