| Cultural Safety and Health Equity at Work | Morgan Bliss | CSD | 2022 |
| Cross-Functional Disaster Management for Non-Emergency-Oriented Employees | Chris Bruner | GISHC | 2022 |
| Crisis Communication : Do's and Don'ts | Michael Peterson | GISHC | 2023 |
| Creative Safety Tips from the Pros—You! | Natasha Dragovich | GISHC | 2021 |
| Creative Safety Tips from the Pros—You! | Natasha Dragovich | GISHC | 2021 |
| Creating Effective Safety Presentations | Timothy Carrico | GISHC | 2022 |
| Creating Effective Safety Committees | Timothy Carrico | GISHC | 2023 |
| Cracking the Code on Workplace Sprains and Strains | Kevin Rindal | GISHC | |
| CPR/First-aid and AED | Don Ebert | GISHC | 2022 |
| CPR / First-Aid Training | Jerry Page | GISHC | 2022 |
| Construction Exposure Assessment for Beginners | Morgan Bliss | CSD | 2020 |
| Confined Space Rescue Teams (Pre-Con) | Kris Alberti | GISHC | |
| Confined Space Entry ~ "Enter By Permit Only!" | Rhett Carpenter | GISHC | |
| Confined Space Competent Person | Kris Alberti | GISHC | 2022 |
| Confined Space Awareness & Challenging Tie Offs | Steven Kosch | GISHC | 2021 |
| Confined Space | Raymundo Rivas | ASD | |
| Compliance inspections: What to expect and most common violations | Steve Yunker | GISHC | 2021 |
| Collaborative Robots: Risk Assessment & Validation | Jennifer Barber | GISHC | |
| Climate Change and Worker Health | Jeremy Hess | GISHC | 2020 |
| Climate Change and Worker Health | Ingrid Zabel | GISHC | 2020 |
| Climate Change and Worker Health | Peter Rabinowitz | GISHC | 2020 |
| Civilian Response to Active Attack Events | Coulson Young | GISHC | 2023 |
| Changes to Agricultural Overtime Eligibility | Kathilie Valentin | ASD | 2022 |
| Cannabis: At work or on the road is a dangerous combination | Daniel Mosqueda | GISHC | 2021 |
| Cannabis in the workplace and on the road can be a dangerous combination | Jerry Noviello | GISHC | |
