German subtitle: “glühende Landschaft”
Texas Administrative Code §111.219
…(3) Burning shall be commenced and conducted only when wind direction and other meteorological conditions are such that smoke and other pollutants will not cause adverse effects to any public road, landing strip, navigable water, or off-site structure containing sensitive receptor(s). For the purposes of the rule, “structure containing sensitive receptors” is defined as follows: A man-made structure utilized for human residence or business, the containment of livestock, or the housing of sensitive live vegetation. The term “man-made structure” does not include such things as range fences, roads, bridges, hunting blinds, or facilities used solely for the storage of hay or other livestock feeds. The term “sensitive live vegetation” is defined as vegetation that has potential to be damaged by smoke and heat, examples of which include, but are not limited to, nursery production, mushroom cultivation, pharmaceutical plant production, or laboratory experiments involving plants.
(4) If at any time the burning causes or may tend to cause smoke to blow onto or across a road or highway, it is the responsibility of the person initiating the burn to post flag-persons on affected roads.
(5) Burning must be conducted downwind of or at least 300 feet (90 meters) from any structure containing sensitive receptors located on adjacent properties unless prior written approval is obtained from the adjacent occupant with possessory control.
(6) Burning shall be conducted in compliance with the following meteorological and timing considerations:
(A) The initiation of burning shall commence no earlier than one hour after sunrise. Burning shall be completed on the same day not later than one hour before sunset, and shall be attended by a responsible party at all times during the active burn phase when the fire is progressing. In cases where residual fires and/or smoldering objects continue to emit smoke after this time, such areas shall be extinguished if the smoke from these areas has the potential to create a nuisance or traffic hazard condition. In no case shall the extent of the burn area be allowed to increase after this time.
(B) Burning shall not be commenced when surface wind speed is predicted to be less than six miles per hour (mph) (five knots) or greater than 23 mph (20 knots) during the burn period.
(C) Burning shall not be conducted during periods of actual or predicted persistent low-level atmospheric temperature inversions.
The authority to conduct outdoor burning under this regulation does not exempt or excuse any person responsible from the consequences, damages, or injuries resulting from the burning and does not exempt or excuse anyone from complying with all other applicable laws or ordinances, regulations, and orders of governmental entities having jurisdiction, even though the burning is otherwise conducted in compliance with this regulation.
*The Texas Administrative Code is available on line, but also see its implementation, for example, at http://www.co.travis.tx.us/fire_marshal/prevention/safety_tips.asp