Door & Hardware Industry Training & Certification from an IACET-Accredited Provider

Understanding DOIT Credentials

DOIT credentials recognize professionals who have demonstrated specialized knowledge and competency in commercial door opening systems, life safety, and security. The descriptions below can help you identify the credentialed professional best suited to your needs.

CLT – Certified Locksmith Technician

A Certified Locksmith Technician (CLT) has demonstrated knowledge and skills in mechanical locking systems, keying, and security hardware.

Areas of expertise include:

• Installing, servicing, and maintaining mechanical locks and cylinders.

• Rekeying, key systems, and locksmithing fundamentals.

• Troubleshooting and repairing locking hardware.

• Evaluating mechanical locking hardware for security and functionality.

Who should you contact? A CLT can assist with locksmithing services, lock maintenance, rekeying, and mechanical security hardware needs.

ADOC – Associate Door Opening Consultant

An Associate Door Opening Consultant (ADOC) has demonstrated foundational knowledge of commercial doors, frames, architectural hardware, applicable codes, and construction processes.

Areas of expertise include:

• Commercial door, frame, and hardware applications.

• Fundamental building, fire, life safety, and accessibility requirements.

• Interpreting construction documents and hardware schedules.

• Coordinating door opening products and project requirements.

Who should you contact? An ADOC can assist with common commercial door opening applications, product selection, and project coordination.

QFDI – Qualified Fire Door Inspector

A Qualified Fire Door Inspector (QFDI) has demonstrated competency in inspecting fire-rated, smoke, and egress door assemblies for compliance with applicable codes and standards.

Areas of expertise include:

• Conducting visual inspections and operational testing of door assemblies.

• Identifying deficiencies that may compromise life safety or code compliance.

• Evaluating door components, hardware, clearances, and field modifications.

• Documenting inspection findings and recommending corrective actions.

Who should you contact? A QFDI can assist building owners and facility managers with required door assembly inspections, compliance evaluations, and identifying deficiencies.

QDOC – Qualified Door Opening Consultant

A Qualified Door Opening Consultant (QDOC) has demonstrated advanced technical knowledge of commercial door opening systems, including complex hardware applications, specifications, and code requirements.

Areas of expertise include:

• Developing and reviewing architectural hardware specifications and schedules.

• Evaluating complex mechanical and electrified hardware applications.

• Applying building, fire, life safety, accessibility, and security requirements.

• Providing technical consultation throughout design and construction.

Who should you contact? A QDOC can assist architects, contractors, and building owners with complex door opening applications, hardware specifications, and technical solutions.

QFDT – Qualified Fire Door Technician

A Qualified Fire Door Technician (QFDT) has demonstrated knowledge and practical skills in the inspection, maintenance, adjustment, and repair of fire door assemblies.

Areas of expertise include:

• Troubleshooting fire door operational deficiencies.

• Adjusting, maintaining, and repairing fire door components.

• Evaluating assemblies against applicable NFPA 80 requirements.

• Recognizing limitations on field modifications and repairs.

Who should you contact? A QFDT can assist with maintaining and repairing fire door assemblies to help preserve their required performance and code compliance.