30 Tex. Admin. Code § 305.174
For the purposes of determining feasibility of compliance with the performance standards of 40 Code of Federal Regulations (CFR) §264.343 and of determining adequate operating conditions under 40 CFR §264.345, the applicant for a permit for an existing hazardous waste incinerator must prepare and submit a trial burn plan and perform a trial burn in accordance with 40 CFR §270.19(b) and §305.172(2) -(5) and (7)-(10) of this title (relating to Determining Feasibility of Compliance and Adequate Operating Conditions) or, instead, submit other information as specified in 40 CFR §270.19(c). The chief clerk shall provide notice of the executive director's intention to approve the trial burn, in accordance with the timing and distribution requirements of § 305.172(6) of this title (relating to Determining Feasibility of Compliance and Adequate Operating Conditions). The contents of the notice must include: the name and telephone number of a contact person at the facility; the name and telephone number of a contact office at the permitting agency; the location where the trial burn plan and any supporting documents can be reviewed and copied; and a schedule of the activities that are required prior to permit issuance, including the anticipated time schedule for approval of the plan and the time period during which the trial burn would be conducted. Applicants submitting information specified in 40 CFR §270.19(a) are exempt from compliance with 40 CFR §§264.343 and 264.345 and, therefore, are exempt from the requirement to conduct a trial burn. Applicants who submit trial burn plans and receive approval before submission of a permit application shall complete the trial burn and submit the results, specified in § 305.172 of this title (relating to Determining Feasibility of Compliance and Adequate Operating Conditions) with Part B of the permit application. If completion of this process conflicts with the date set for submission of the Part B application, the applicant shall contact the executive director to establish a later date for submission of the Part B application or the trial burn results. Trial burn results must be submitted prior to issuance of the permit. When the applicant submits a trial burn plan with Part B of the permit application, the executive director will specify a time period prior to permit issuance in which the trial burn must be conducted and the results submitted.
30 Tex. Admin. Code § 305.174