Lockout/Tagout (LOTO) Safety FAQ
Lockout/Tagout (LOTO) Safety - Frequently Asked Questions
What is Lockout/Tagout (LOTO)?
Lockout/Tagout (LOTO) is a critical safety procedure used to ensure that dangerous machinery and equipment are properly shut off and cannot be started up again before maintenance or repair work is completed. This procedure protects workers from hazardous energy releases that could cause serious injury or death.
Why is LOTO important in industrial settings?
LOTO procedures prevent approximately 120 fatalities and 50,000 injuries annually by controlling hazardous energy during equipment servicing and maintenance. Proper lockout/tagout ensures that machinery cannot accidentally start, release stored energy, or create other hazardous conditions while workers are performing maintenance.
What types of energy sources require LOTO?
LOTO applies to all hazardous energy sources including:
- Electrical energy (motors, circuits, capacitors)
- Mechanical energy (springs, rotating parts, elevated components)
- Hydraulic energy (pressurized fluids)
- Pneumatic energy (compressed air or gas)
- Thermal energy (steam, hot surfaces)
- Chemical energy (reactive substances)
- Gravitational energy (suspended loads)
What equipment do I need for proper LOTO procedures?
Essential LOTO equipment includes:
- Safety padlocks - Durable, uniquely keyed locks in bright colours for visibility
- Lockout tags - "Do Not Operate" tags with worker identification
- Lockout hasps - Allow multiple workers to lock out the same energy source
- Circuit breaker lockouts - Prevent electrical switches from being turned on
- Valve lockouts - Secure valves in the closed position
How many padlocks do I need for my facility?
Each authorized worker performing maintenance must have their own personal safety padlock. Additionally, you'll need enough padlocks to secure all potential energy isolation points in your facility. We recommend conducting an energy control audit to determine your exact requirements.
What colour padlocks should I use?
While colour choice can vary by company policy, common practices include:
- Red - Most common for electrical lockout
- Yellow - Often used for general lockout or mechanical energy
- Blue - Frequently assigned to specific departments or contractors
- Green - Sometimes used for safety or environmental controls
The key is consistency within your facility and high visibility. All our LOTO padlocks feature bright, highly visible colours.
Can multiple workers lock out the same equipment?
Yes, and they should! When multiple workers are servicing the same equipment, each worker must apply their own personal padlock using a lockout hasp (group lockout device). This ensures that equipment cannot be re-energized until every worker has removed their lock and completed their work safely.
What are the basic steps of LOTO procedure?
The six essential steps are:
- Preparation - Identify all energy sources and required lockout points
- Notification - Inform all affected employees about the lockout
- Shutdown - Turn off equipment using normal stopping procedures
- Isolation - Disconnect or isolate all energy sources
- Lockout/Tagout - Apply locks and tags to energy-isolating devices
- Verification - Test that equipment cannot be restarted and all energy is controlled
How do I verify that equipment is properly locked out?
After applying locks and tags, you must verify zero energy by:
- Attempting to start the equipment using normal controls (should not operate)
- Testing for residual or stored energy with appropriate instruments
- Checking that all moving parts have stopped completely
- Verifying pressure gauges read zero
- Using voltage testers on electrical circuits
What information should be on a lockout tag?
Every lockout tag should include:
- "Do Not Operate" or similar warning
- Worker's name who applied the lock
- Date and time of lockout
- Reason for lockout
- Department or contact information
Our High-Visibility Safety Tags include all necessary fields for proper documentation.
Who can remove a lockout device?
Only the authorized worker who applied the lock may remove it. Removing another worker's lock is strictly prohibited and extremely dangerous. If a worker is unavailable (illness, end of shift), specific procedures must be followed under management supervision before lock removal.
Do contractors need their own LOTO equipment?
Yes. Contractors and outside service personnel must follow your facility's LOTO procedures and use compatible lockout devices. Many facilities require contractors to use distinctly coloured locks (often blue or purple) to differentiate them from regular employees.
How often should LOTO procedures be reviewed?
LOTO procedures should be reviewed:
- At least annually for all equipment
- Whenever equipment or processes change
- After any incident or near-miss
- When new equipment is installed
- During worker retraining
What training is required for LOTO?
Workers must receive training appropriate to their role:
- Authorized employees - Comprehensive training on energy control procedures, equipment-specific lockout points, and verification methods
- Affected employees - Awareness training about LOTO purpose and prohibition against restarting locked-out equipment
- Other employees - Basic awareness of LOTO procedures in the facility
Are your LOTO padlocks suitable for harsh industrial environments?
Yes. Our LOTO safety padlocks are specifically designed for industrial use with features including:
- Durable, non-conductive bodies resistant to chemicals and corrosion
- Weather-resistant construction for indoor and outdoor use
- High-visibility colours that won't fade
- Unique keying to prevent unauthorized removal
- Lightweight design that won't damage equipment
How do I implement a LOTO program at my facility?
To establish an effective LOTO program:
- Conduct an energy control survey of all equipment
- Develop written procedures for each piece of equipment
- Procure necessary lockout devices and hardware
- Train all employees on procedures and responsibilities
- Implement the program with management support
- Conduct periodic inspections and audits
- Update procedures as needed
Can I order LOTO equipment in bulk for my facility?
Absolutely! We offer bulk pricing for facilities outfitting multiple workers or locations. Contact us for a quote based on your specific requirements for padlocks, tags, and accessories for your operation.
Do you offer different keying options?
Yes. Our LOTO padlocks are available with:
- Keyed Different (KD) - Each lock has a unique key (most common for personal locks)
- Keyed Alike (KA) - Multiple locks open with the same key (useful for specific applications)
- Master Keyed - Individual keys plus a master key for management (available on request)
What's the difference between lockout and tagout?
Lockout uses a physical lock to prevent equipment operation, while tagout uses a warning tag. Lockout is always preferred because it provides a physical barrier. Tags alone should only be used when lockout is not feasible, and additional safety measures must be implemented. Best practice is to use both locks AND tags together.
Still have questions?
Our team is here to help you implement effective LOTO procedures at your facility. Contact us for personalized guidance on selecting the right safety equipment for your specific industrial applications.