D&S Diversified Technologies LLP Ohio Lead Abatement Testing and Certification Innovative, quality technology solutions
throughout the United States
since 1985.
Headmaster LLP

EFFECTIVE 2-26-2026:The Ohio Lead Abatement Testing and Certification has been updated to D&SDT-HEADMASTER's TMU© testing platform software. Please see the Candidate Handbook for detailed information.


D&SDT's Hours of Operation: Monday - Friday, 8:00 AM to 8:00 PM Eastern Time, excluding Holidays.

Candidate Forms

TEST SITE INFORMATION

TEST ADMINISTRATION SERVICES ENTITY (TASE)

D&S Diversified Technologies - HEADMASTER

TestMaster Universe(TMU©)

Ohio Lead TMU© Login
Candidate Handbook
Effective February 26, 2026

Knowledge Exam Instruction VA Benefits Reimbursement Forms

TestMaster Universe (TMU©) How To Guides
CANDIDATES
(please refer to the Candidate Handbook for more information)

How to Sign In to Your Account and Forgot Your Password/Reset Your Account How to Complete your Account How to Schedule or Reschedule for a Test Event
ADA Accommodation Form Refund of Testing Fees Paid Form

TestMaster Universe(TMU©)

Ohio Lead TMU© Login




Test Administration Services Agreement Form
TASE FORM 1505OH LEAD
Please contact us if you have any questions, concerns, or suggestions about our service. We value the feedback we receive from everyone involved in the Ohio Lead Abatement training, testing, and certification process.

Ohio Program Manager
PO Box 6609
Helena, MT 59604
Testing Toll Free Phone:(888) 401-0462
Fax: (406) 442-3357 ohlead@hdmaster.com

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