14 CFR §135.41
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
If the holder of a certificate operating under this part allows any aircraft owned or leased by that holder to be engaged in any operation that the certificate holder knows to be in violation of § 91.19(a) of this chapter, that operation is a basis for suspending or revoking the certificate.