The minimum breath sampling size of an IID may be reduced to 1.2 liters for a device user with diminished lung capacity. Diminished capacity may be established through documentation from the appropriate judicial authority, advising of the necessity for the lower breath volume requirement. This documentation should be maintained in the manner required of calibration and maintenance records under § 10.12 of this title (relating to Vendor Standards).
37 Tex. Admin. Code § 10.16