Many local authorities noted that many operators are at their limit with licenses and depot capacity and some have gone out of business in the last year.
Nododd llawer o awdurdodau lleol fod llawer o weithredwyr wedi cyrraedd y pen o ran trwyddedau a chapasiti depos, ac mae rhai wedi mynd i'r wal yn ystod y flwyddyn ddiwethaf.