OBS_VALUE: Quality of the postal services is monitored for both the UPS (under sections 10 and 11) as well for all other UPS services (under sections 32 and 33). Quality assurances for non-UPS services materialize through imposing minimum opening times (i.e., not less than 20 hours at least five days a week), complaint systems, and other quality specifications. The regulatory authority independently verifies at least once a year whether the quality of the postal services outside of the UPS are maintained (see s. 33 of the Postal Act).