Local authorities in the province of Khatlon have instructed traffic police to punish drivers who crank up the music or listen to loud recordings of religious sermons -- a popular practice in the predominantly Muslim country.
While drivers mostly get away with a reprimand the first time, repeat offenders face fines ranging between 105 and 175 somoni ($22 and $37), a relatively large sum by local standards.
Officials say blaring music in vehicles, particularly in taxis and buses, disturbs public peace and poses a danger to traffic safety.
While many locals have welcomed the measure with a sigh of relief, many drivers say it intrudes on their rights.
"It's my car and I listen to the music I want," says Kurbonnazar Komilov, a local driver. "We live in a democracy."
The ban also applies to using mobile phones and portable television sets in vehicles.
-- Ismatullo Abdulkhamidov and Claire Bigg