Amend CSSB 1952 in SECTION 13A.01 of the bill, in proposed Subsection (c), Section 51.21, Tax Code (House Committee Printing page 233, line 13), at the end of the subsection, by adding the following: In determining whether the local value for a school district is valid, the commissioner shall use a margin of error that does not exceed five percent unless the commissioner determines that the size of the sample of properties necessary to make the determination makes the use of such a margin of error not feasible, in which case the commissioner may use a larger margin of error.