13 (1) A medical officer of health or a public health inspector, in the circumstances mentioned in subsection (2), by a written order may require a person to take or to refrain from taking any action that is specified in the order in respect of a health hazard.  R.S.O. 1990, c. H.7, s. 13 (1). Condition precedent to order (2) A medical officer of health or a public health inspector may make an order under this section where he or she is of the opinion, upon reasonable and probable grounds, (a) that a health hazard exists in the health unit served by him or her; and (b) that the requirements specified in the order are necessary in order to decrease the effect of or to eliminate the health hazard.  R.S.O. 1990, c. H.7, s. 13 (2). Time (3) In an order under this section, a medical officer of health or a public health inspector may specify the time or times when or the period or periods of time within which the person to whom the order is directed must comply with the order.  R.S.O. 1990, c. H.7, s. 13 (3). Idem (4) An order under this section may include, but is not limited to, (a) requiring the vacating of premises; (b) requiring the owner or occupier of premises to close the premises or a specific part of the premises; (c) requiring the placarding of premises to give notice of an order requiring the closing of the premises; (d) requiring the doing of work specified in the order in, on or about premises specified in the order; (e) requiring the removal of anything that the order states is a health hazard from the premises or the environs of the premises specified in the order; (f) requiring the cleaning or disinfecting, or both, of the premises or the thing specified in the order; (g) requiring the destruction of the matter or thing specified in the order; (h) prohibiting or regulating the manufacturing, processing, preparation, storage, handling, display, transportation, sale, offering for sale or distribution of any food or thing; (i) prohibiting or regulating the use of any premises or thing.  R.S.O. 1990, c. H.7, s. 13 (4). Person directed (5) An order under this section may be directed to a person, (a) who owns or is the occupier of any premises but where an order is directed to the occupier, the person making the order shall deliver or cause the delivery of a copy of the order to the owner of the premises; (b) who owns or is in charge of any substance, thing, plant or animal or any solid, liquid, gas or combination of any of them; or (c) who is engaged in or administers an enterprise or activity, in the health unit served by the medical officer of health or the public health inspector.  R.S.O. 1990, c. H.7, s. 13 (5). Reasons for order (6) An order under this section is not effective unless the reasons for the order are set out in the order.  R.S.O. 1990, c. H.7, s. 13 (6). Oral order (7) Where the delay necessary to put an order under this section in writing will or is likely to increase substantially the hazard to the health of any person, the medical officer of health or the public health inspector may make the order orally and subsection (6) does not apply to the order.  R.S.O. 1990, c. H.7, s. 13 (7). Description of person directed (8) It is sufficient in an order under this section to direct the order to a person or persons described in the order, and an order under this section is not invalid by reason only of the fact that a person to whom the order is directed is not named in the order.  R.S.O. 1990, c. H.7, s. 13 (8).