Certified TIA-942 Lead Auditor (CTLA®)

Course code: CTLA

The CTLA® course is designed to provide the knowledge and skills to become an external auditor who is able to independently conduct ANSI/TIA-942 conformity audits. The course contains lectures and a variety of business cases exposing and testing the aspiring auditor for his/her auditing capabilities. External auditors could have a major impact on determining the conformity or nonconformity of a data centre to the requirements of the ANSI/TIA-942. As such, the examination is one of the toughest exams in the data centre industry.

After completion of the course the participant will be able to:

  • Describe the ANSI/TIA-942 audit scheme
  • Describe the different certification programs
  • Define an ANSI/TIA-942 audit program
  • Review design drawings for conformity to the standard
  • Judge audit evidence to be a CAT-1, CAT-2, OFI, RFI
  • Create an audit report that conforms to TIA requirements
  • Review a CAR – Corrective Action Report
  • Understand the requirements and process for issuing certificates
  • Describe the requirements for certication maintenance

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Course dates

Starting date: Upon request

Type: In-person/Virtual

Course duration: 3 days

Language: en/cz

Price without VAT: 4 800 EUR


Starting date: Upon request

Type: Exam

Course duration: 1 hour

Language: en

Price without VAT: 200 EUR


Type Course
Language Price without VAT
Upon request In-person/Virtual 3 days en/cz 4 800 EUR Register
Upon request Exam 1 hour en 200 EUR Register
G Guaranteed course

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Target group

The audience for this course is any professional who aspires to become a TIA-942 Lead Auditor. Please note that the CTLA® certification does not allow the person to conduct a third-party audit and issue statements/letters/certificates unless he/she works for a TIA Accredited Licensed Certification Body and meets the other obligations as laid down in the auditor accreditation rules of TIA.

Course structure

TIA-942 Accreditation Scheme

  • The ANSI/TIA-942 accreditation scheme
  • Standards
  • SDO – Standards Development Organization
  • TC/SC – Technical Committee / Sub Committee
  • Standards Development Process
  • Scheme Owner
  • Audit Organizations (RCB, CB, CAB)
  • Accreditation Body (AB, NAB)
  • Roles within a CB

Audit and Certification Process

  • Overview of audit process
  • Initiate audit
  • Prepare for audit
  • DCDV – Data Center Design Validation
  • DCCC – Data Center Conformity Certification
  • Report writing
  • CAR – Corrective Action Report
  • Issuance of certificates
  • ANSI/TIA-942 certification for data centers
  • Certificate maintenance
  • Audit steps duration overview

Audit Planning

  • The audit program
  • Planning the schedule
  • Audit preparation
  • Opening Meeting
  • Exercise: Creating an audit program, opening meeting presentation

Rating Levels Audit Criteria

  • High-level audit criteria considerations
  • High-level design requirements (Architectural, Electrical,
  • Mechanical, Telecommunication)
    • Rated-1
    • Rated-2
    • Rated-3
    • Rated-4

Recap on Nonconformity Classification

  • Nonconformity classi­cation
  • Major nonconformity
  • Minor nonconformity
  • OFI – Observation Form Improvement
  • RFI – Request For Information
  • Grading of nonconformity

Site Location & Architectural Audit

  • Key considerations

Fire Safety Audit

  • Key considerations

Physical Security Audit

  • Key considerations
  • Exercise: Review site planning, floor planning, physical security, ­fire safety

Electrical Audit

  • Key considerations
  • Exercise: Review SLD – Single Line Diagram

Mechanical Audit

  • Key considerations
  • Exercise: Review SLPD – Single Line Piping Diagram, fuel supply

Telecommunications Audit

  • Key considerations
  • Exercise: Network routing review

Closing Meeting

  • Closing meeting
  • Exercise: Closing meeting presentation

Preparing and Distributing the Audit Report

  • Audit report requirements
  • Audit report distribution
  • Retention of documents
  • Exercise: Creation of audit report

CAR Management

  • Follow-up action on audit report
  • History log of nonconformity
  • Criteria for issuing a conformance certificate
  • Review of a CAR
  • Exercise: Review CAR response

Certification and Certification Maintenance

  • The full audit cycle
  • Surveillance audit
  • Recertification audits
  • Issuing of the TIA-942 DCDV/DCCC Certificate
  • Requirements of the certificate
  • Registration of the certificate


Participants must possess:

  • A valid CTDC® – Certified TIA-942 Design Consultant Certificate
  • A valid CTIA® – Certified TIA-942 Internal Auditor Certificate or a valid ISO-9001 or ISO-27001 Lead Auditor Certificate

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Candidates who successfully complete the business case and pass the exam will receive the official ‘Certified TIA-942 Lead Auditor’ certificate.

The CTLA® certificate is issued for the ANSI/TIA-942 version current at the time, which the candidate tested for. The certificate itself does not expire and stays relevant for the stated ANSI/TIA-942 version, and is subject to auditors regulation as per TIA.

To be awarded the CTLA®, the candidate must meet two criteria. The first is the successful completion of the business cases during the training, the result will be available within 14 days. The second is a 60-minute closed-book exam, with 40 multiple-choice questions, whereby 32 correct answers are required to pass.

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