Any regulated article may be moved interstate from a quarantined area 2 only if moved under the following conditions:

2 Requirements under all other applicable Federal domestic plant quarantines and regulations must also be met.

With a certificate or limited permit issued and attached in accordance with §§ 301.50-5 and 301.50-8 of this subpart;

Without a certificate or limited permit, if:

The regulated article originates outside any quarantined area and is moved through the quarantined area without stopping (except for dropoff loads, refueling, or traffic conditions, such as traffic lights or stop signs) during October, November, or December, or when ambient air temperature is below 10 °C (50 °F); or

The regulated article originates outside any quarantined area and, during the period of January through September, is moved through the quarantined area at a temperature higher than 10 °C (50 °F), if the article is shipped in an enclosed vehicle or completely covered (such as with plastic, canvas, or other closely woven cloth) so as to prevent access by the pine shoot beetle; and

The point of origin of the regulated article is indicted on the waybill.

With a limited permit issued by the Administrator if the regulated article is moved:

By the United States Department of Agriculture for experimental or scientific purposes;

Under conditions, specified on the permit, which the Administrator has found to be adequate to prevent the spread of the pine shoot beetle; and

With a tag or label, bearing the number of the permit issued for the regulated article, attached to the outside of the container of the regulated article or attached to the regulated article itself, if the regulated article is not in a container.