Raba-Kistner is Precertified in the following Texas Department of Transportation Precertification categories:

1.2.1 SYSTEMS PLANNING

1.3.1 SUBAREA/CORRIDOR PLANNING

1.4.1 LAND PLANNING/ENGINEERING

1.6.1 MAJOR INVESTMENT STUDIES

2.1.1 TRAFFIC NOISE ANALYSIS

2.2.1 AIR QUALITY ANALYSIS

2.3.1 WETLAND DELINEATION

2.4.1 NATIONWIDE PERMIT

2.4.2 INDIVIDUAL PERMITS

2.4.3 COAST GUARD & U.S. ARMY CORP OF ENGINEER PERMIT

2.5.1 WATER POLLUTION ABATEMENT PLAN

2.6.1 PROTECTED SPECIES DETERMINATION (HABITAT)

2.6.2 IMPACT EVALUATION ASSESSMENTS

2.6.3 BIOLOGICAL SURVEYS

2.10.1 ARCHEOLOGICAL SURVEYS

2.11.1 HISTORICAL AND ARCHIVAL RESEARCH

2.13.1 HAZARDOUS MATERIALS INITIAL SITE ASSESSMENT

2.14.1 ENVIRONMENTAL DOCUMENT PREPARATION

3.1.1 ROUTE STUDIES & SCHEMATIC DESIGN - MINOR ROADWAYS

3.2.1 ROUTE STUDIES & SCHEMATIC DESIGN - MAJOR ROADWAYS

3.3.1 ROUTE STUDIES & SCHEMATIC DESIGN - COMPLEX HIGHWAYS

3.4.1 MINOR BRIDGE LAYOUTS

3.5.1 MAJOR BRIDGE LAYOUTS

3.6.1 MULTI-LEVEL INTERCHANGE AND EXOTIC BRIDGE LAYOUT

4.1.1 MINOR ROADWAY DESIGN

4.2.1 MAJOR ROADWAY DESIGN

4.3.1 COMPLEX HIGHWAY DESIGN

4.4.1 MAJOR FREEWAY INTERCHANGES AND DIRECT CONNECTORS

7.1.1 TRAFFIC ENGINEERING STUDIES

7.4.1 TRAFFIC CONTROL SYSTEMS ANALYSIS, DESIGN, AND IMPLEMENTATION

8.1.1 SIGNING, PAVEMENT MARKING, AND CHANNELIZATION

8.3.1 SIGNALIZATION

10.1.1 HYDROLOGIC STUDIES

10.2.1 BASIC HYDRAULIC DESIGN

11.1.1 ROADWAY CONSTRUCTION MANAGEMENT AND INSPECTION

11.2.1 MAJOR BRIDGE CONSTRUCTION MANAGEMENT AND INSPECTION

12.1.1 ASPHALTIC CONCRETE

12.1.2 PORTLAND CEMENT CONCRETE

12.2.1 PLANT INSPECTION AND TESTING

14.1.1 SOIL EXPLORATION

14.2.1 GEOTECHNICAL TESTING

14.3.1 TRANSPORTATION FOUNDATION STUDIES

14.4.1 BUILDING FOUNDATION STUDIES

16.1.1 ARCHITECTURE - BUILDINGS AND OTHER STRUCTURES