OPSD 989.110 - Small Sign Support System SQR-LOC Perforated Steel Square Sign Post System Installation - Single Post Assembly
OPSD 989.210 - Small Sign Support System SQR-LOC Perforated Steel Square Sign Post System Installation - Double Post Assembly
OPSS.MUNI 703 - Permanent Small Signs and Support Systems
OPSS.PROV 703 - Permanent Small Signs and Support Systems
Other Standards
NCHRP 350 TL-3 - Recommended Procedures for the Safety Performance Evaluation for Support Structures, Work Zone Traffic Control Devices and Breakaway Utility Poles