B505 - COST BENEFIT ANALYSES
B506 - SPECIAL STUDIES/ANALYSIS- DATA (OTHER THAN SCIENTIFIC)
B507 - ECONOMIC STUDIES
B524 - SPECIAL STUDIES/ANALYSIS- MATHEMATICAL/STATISTICAL
B529 - SPECIAL STUDIES/ANALYSIS- SCIENTIFIC DATA
B543 - SPECIAL STUDIES/ANALYSIS- ENERGY
B599 - OTHER SPECIAL STUDIES AND ANALYSES
R405 - SUPPORT- PROFESSIONAL: OPERATIONS RESEARCH/QUANTITATIVE ANALYSIS
R424 - SUPPORT- PROFESSIONAL: EXPERT WITNESS