|(a) To be eligible for an environmental lead investigation, the child's elevated blood lead level(s) must meet the most recent criteria for environmental investigation issued by the Centers for Disease Control and Prevention of the United States Public Health Service. (b) The request for an environmental lead investigation shall be on the department's most current form, Pb-101, Request for Environmental Lead Investigation or equivalent. A current version of form Pb-101 may be obtained from the department's website at http://www.dshs.state.tx.us/lead, or by calling 1-800-588-1248. The completed form should be sent by FAX, ATTENTION: Environmental Specialist, using the fax number on the form. (c) On receiving a report of a child with a confirmed blood lead level warranting an environmental lead investigation, the department or its authorized agent may conduct an environmental lead investigation, using Form Pb-103 (Elevated Blood Lead Level Investigation Questionnaire) or its equivalent, of: (1) the home environment in which the child resides, or other premises frequented by a child, if the department or the department's authorized agent obtains the written consent of an adult occupant; (2) any child-care facility with which the child has regular contact and that may be contributing to the child's blood lead level, if the department or the department's authorized agent obtains the written consent of the owner, operator, or principal of the facility; and (3) any child-occupied facility with which the child has regular contact and that may be contributing to the child's blood lead levels, if the department or the department's authorized agent obtains the written consent of: (A) the owner, operator, or principal of the facility; or (B) an adult occupant of the facility if the facility is subject to a lease agreement. (d) Written consent shall be on the department's form or equivalent meeting the requirements of the Texas Health and Safety Code, §161.011, §161.0211, and §161.0212. (e) The lead risk assessor shall provide documented evidence when applicable, of all attempts made to receive consent for environmental lead investigation as required by subsection (c) of this section. (f) If consent is denied, the investigator shall document the reason and circumstance for the denial, and measures that should be taken to protect the health of the child. (g) Written consent is not required for an investigation for a child with a blood lead level of at least 45 micrograms per deciliter if a good faith attempt to contact the person authorized to provide written consent under subsection (e) of this section has been unsuccessful.