Amendment 0001 - updates Set Aside Code Field to reflect Total Small Business Set-Aside.United States Property and Fiscal Office (USPFO) - Texas intends to award a Firm-Fixed-Price Purchase Order for Industrial Hygiene Services for locations in Central Texas in accordance with the Performance Work Statement. The North American Industrial Classification System (NAICS) code for this procurement is 541690 - Other Scientific and Technical Consulting Services and the Product Service Code (PSC) is R428 - Professional Industrial Hygienics. This requirement is a Total Small Business Set Aside.See the attached solicitation W912L125Q1074, Performance Work Statement (PWS), and the applicable Wage Determinations (WD).All questions shall be submitted in writing to ng.tx.txarng.mbx.uspfo-tx-pc1@army.mil and the solicitation number and description shall be listed in the subject line for prompt attention c/o L. Janak.