CST Certification Guide: How to Become a Certified Surgical Technologist

CST certification is a career-defining credential for surgical technologists. Whether you're working in a hospital OR, ambulatory surgery center, or pursuing travel assignments, becoming a Certified Surgical Technologist (CST) can boost your job eligibility, increase your earning potential, and validate your skills in the operating room. This guide explains who should get certified, what the exam involves, how much it costs, and how to maintain your certification long-term.

What is CST Certification?

CST certification is a nationally recognized credential administered by the National Board of Surgical Technology and Surgical Assisting (NBSTSA). It confirms a surgical technologist’s knowledge of sterile technique, surgical procedures, and perioperative patient care.

The CST credential is:

• Often required by hospitals and surgical centers
• Frequently listed as a requirement for travel assignments
• Recognized by the Association of Surgical Technologists (AST)

Eligibility requirements for CST certification

To be eligible for the CST exam, candidates must:

• Graduate from a CAAHEP or ABHES-accredited surgical technology program
• Or complete military training in surgical technology
• Submit documentation of program completion

Important note: Some states require CST certification to legally practice as a surgical technologist. 

CST exam at a glance

Quick Facts:

• Format: 175 multiple-choice questions (150 scored, 25 unscored)
• Time limit: 4 hours
• Passing score: 98 out of 150 scored questions
• Delivery: Pearson VUE testing centers

Exam Domains

CST Exam Costs

How to prepare for the CST exam

• Review the NBSTSA Candidate Handbook for current exam policies
• Use AST study guides and flashcards for in-depth review
• Follow a study timeline (6–8 weeks recommended)
• Take practice exams to simulate test conditions
• Join peer study groups or online communities for support

Renewal & recertification requirements

CST certification is valid for 4 years. Renewal can be done via:

1. Continuing Education:

• 60 CE credits over 4 years
• Submit through AST-approved CE tracking

2. Re-examination:

• Retake and pass the CST exam before certification expires
• Failing to renew on time results in expiration and a loss of certified status.

CST vs. other surgical tech certifications

CST is the most widely accepted certification for hospital-based and travel surgical tech roles.

State requirements for surgical technologists

Some states mandate certification and/or registration. Common requirements include:

• CST certification (e.g., Texas, New York, Oregon)
• Graduation from an accredited program
• Continuing education for license renewal
• Use AST’s state law map to confirm your state’s policy

Salary & career opportunities with CST certification

CST-certified techs often earn higher salaries and gain access to:

• Level I/II trauma center jobs
• Cardiovascular, neuro, and transplant surgical teams
• Travel roles with premium pay
• Preceptor or lead tech roles

Real-world impact: Many travel facilities now require CST certification for placement.

Career advancement for experienced CSTs

After earning CST certification, surgical techs may choose to:

• Become a Certified Surgical First Assistant (CSFA)
• Transition into educator or clinical instructor roles
• Take leadership positions (e.g., OR team lead, shift coordinator)
• Expand into vendor/sales roles for surgical instruments and devices