SB 202 The SB 202 Compressive Strength Specialist certification is a one-day certification course that certifies an individual’s ability to properly sample and test soils and flexible base compressive strength properties in accordance with TxDOT Test Procedures.Â There is no demonstration or training; individuals must come prepared to pass examinations of associated test procedures through demonstration, verbal and practical methods. Once the evaluations are successfully completed, a final written examination is administered. A score of 80% or higher is necessary to obtain certification. Test Procedures covered: Click on link to view test procedure: Tex-100-E Surveying and Sampling Soils for Highways (August 1999) Tex-101-E Preparing Soil and Flexible Base Material for Testing (Part II) (January 2010) Tex-117-E Triaxial Compression for Disturbed Soils and Base Materials (January 2010) Tex-120-E Soil Cement Testing (April 2013) Tex-121-E Soil-Lime Testing (August 2002) Tex-128-E Determining Soil pH (August 1999) Tex-400-A, Sampling Flexible Base, Stone, Gravel, Sand and Mineral Aggregates (January 2010) Tex-600-J Sampling and Testing Lime (Part I) (Feb 2006) Pre-requisite A current SB 201 certificate is required to participate in this class. Re-certification Every three (3) years all SB 202 Compressive Strength Specialists are required to re-certify. The re-certification course is a three day course offered throughout the year at the HMAC. A Specialist can attend a re-certification class up to one year prior to expiration. Training Class The SB202 Training classes will be three-days in length and focus on providing a basic understanding and knowledge of the TxDOT Test Procedures and Specifications. These classes are not pre-requisites to any certification class and participants will not earn certification. Federally Mandated Annual Proficiency The Texas Department of Transportation requires all SB 202 Strength Specialists to participate in an Annual Proficiency Program. Participation in this program is MANDATORY. Failure to participate will result in certification revocation. To learn more about the proficiency program, click here.