sharon miller, a retired school teacher, was riding in the three wheeler with her husband on july 3 4á the driver suddenly swerved, causing miller to fall out. she hit her head and eventually died as a result of her injuries. in light of that tragic incident in san diego, we wanted to know who what are the rules and regulations governing them in the capital. we found out there are no rules and regulations. we were directed to the dc taxicab commission, the department of consumer and regulatory affairs, the mayor's office, the dc council, but though one seems to know of any rules and regulations for the city's pedi-cabs. >> we follow the cab rules. i know -- we're not allowed to ride on the sidewalks at all. >> reporter: there is a business license and fee. outside of that, it appears the pedi-cab operators and passengers are coming up with their own rules out here on the streets. >> bye-bye. >> reporter: bruce johnson, 9news now, and wusa9.com. >> national pedi-cabs appears to be the largest company in dc. national has 20 carriers on the streets. >>> time to say good morning again to h