(a) block free movement of another person or persons; lie on the floor, stairs or occupy more than one seat when to do so would interfere with the operation of MTABC’s transportation system or the comfort of other passengers; or place his or her foot, or item on any seat;

(b) create any sound through the use of any sound production device, except as is specifically authorized by these rules. In no event will the use of amplification devices of any kind, electronic or otherwise, be permitted on a bus. Use of radios and other devices listened to solely by headphones or earphones and inaudible to others is permitted;

(c) throw, drop or cause to be propelled any object, projectile or other article at, from, upon, in or on a facility or bus;

(d) bring into a facility or carry onto a bus liquid in an open container, or drink any alcoholic beverage or possess any opened or unsealed container of alcoholic beverage;

(e) consume any controlled substance except pursuant to valid prescription;

(f) enter or remain in any facility or bus while his or her ability to function safely in the environment of the facility or bus is impaired by the consumption of alcohol or by the taking of any drug;

(g) endanger the safety of others, engage in fighting or assault another person or persons, or threaten another person with such conduct;

(h) vandalize, injure, deface, alter, write upon, destroy, remove or tamper with the facilities or buses, including any facilities under the jurisdiction of tenants or permittees;

(i) except as specifically authorized by the authority or MTABC, enter or attempt to enter into any area not open to the public, including, but not limited to, bus operator's seat location, closed-off areas, mechanical or equipment rooms, storage areas, interior rooms, catwalks, emergency stairways (except in cases of an emergency), roadbeds, plants, shops, barns, garages, depots or any area marked with a sign restricting access or indicating a dangerous environment;

(j) enter or attempt to enter any area which is locked or otherwise restricted from public access by any means including, but not limited to, barricades, fencing, doors and signs, or enter or leave a facility or bus except by designated entrance ways or exits;

(k) ride or otherwise stand on a skateboard, wear roller skates or in-line skates, ride or straddle a bicycle while in motion, or ride a scooter or any other self-propelled vehicle or motor-propelled vehicle or device, on or through any part of a facility or bus, or while attached to the outside of a bus. This provision does not apply to the proper use of self-propelled or motor-propelled vehicles or similar devices by nonambulatory persons;

(l) cook, light a fire or otherwise create a fire except pursuant to the terms of any lease, license, operating agreement or concession granted by MTABC or the authority;

(m) dispense commercial merchandise with or without charge or carry on any commercial activity except pursuant to the terms of a lease, license, operating agreement or concession granted MTABC or the authority;

(n) burn a lighted cigarette, cigar, pipe or any other matter or substance which contains tobacco or any tobacco substitute on a bus or within any facility;

(o) engage in any activity which interferes with the commercial activities of lessees, tenants or their customers;

(p) engage in noncommercial activities, except as expressly permitted by these rules;

(q) misrepresent through words, signs, leaflets, attire or otherwise, such person's affiliation with or lack of affiliation with or support by any organization, group, entity, or cause, including any affiliation with or support by MTABC or the authority;

(r) carry on or bring to any facility or bus any item that:

(s) bring a bicycle into a facility or bus;

(t) extend his or her hand, arm, leg, head or other part of his or her person, or extend any item, article or other substance outside of the window or door of a bus or other conveyance operated by MTABC;

(u) ride on the roof or any other area outside a bus or any other conveyance operated by MTABC;

(v) refuse or fail to relinquish a seat on a conveyance which has been designated as "PRIORITY SEATING'', "WHEELCHAIR PRIORITY SEATING'' or words of similar import, if requested to do so by or on behalf of a person with a disability, or occupy any location on a conveyance designated for persons using wheelchairs if such location is required to accommodate a person using a wheelchair; and

(w) gain entry into a bus in any unauthorized manner through an exit door or through or past any point at which a fare is required or collected, and it shall be no defense to a charge of a violation of this subdivision that fare media, a fare media sales device or a fare collection device was malfunctioning.