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CERTIFICATION PROGRAMS

Digger Derrick Operator

How Do I Test? Practical Exam

PRACTICAL EXAMINATION PROCESS

SKILLS TESTED

The digger derrick operator practical examination is comprised of seven main tasks that increase progressively in the skill level tested. Skills tested are: inspecting the equipment, hoisting, booming, swinging, telescoping, following hand signals, combination (multifunction) operations, augering, and picking up a pole. Digger derrick operation with load and without load is required.

SCHEDULING A TEST

Candidates for the practical examination should contact their Test Site Coordinator to determine the date of the next scheduled practical exam. Candidates may also visit the NCCCO Practical Test Sites page for a listing of open Test Sites.

TEST DAY

Candidates must report to the Test Site at the scheduled time. All candidates shall comply with Test Site requirements concerning personal protective equipment (PPE), which at a minimum shall meet OSHA requirements.

PRACTICAL SCORING

Candidate performance on the practical examination is recorded by Practical Examiners accredited by NCCCO. Examiner requirements include meeting NCCCO requirements for certification, passing the written and practical exams, and successfully completing an accreditation workshop.

The testing procedure has been developed to provide the highest degree of standardization and reliability. The Examiner’s task is primarily to record the performance of the candidate.

A candidate may lose points either through operational errors or exceeding established optimum time limits. Candidates’ performances are scored off site at the facilities of International Assessment Institute.

PRACTICAL SCORE REPORTING

All candidates receive score reports of their performance. Examination results are mailed to candidates approximately 12 business days after the receipt of practical examination score sheets by International Assessment Institute.

Please note that while Practical Examiners are encouraged to expedite score sheets after each test administration, they may batch score sheets from several test administrations over a number of days. This means that candidates may receive their score reports from IAI more than three weeks after their test administration.

Both the practical examination and the scoring system have been validated by NCCCO’s pilot testing program and verified by International Assessment Institute. A percentage score of 78 represents the minimum passing score for digger derrick operator practical examinations.

PRACTICAL EXAM CANDIDATE FEES

Practical Exam Fees:

Digger Derrick Operator Practical Exam (new candidate) $60
Digger Derrick Operator Practical Exam (current CCO-certified Mobile Crane Operator) $50
Digger Derrick Operator Practical Exam (new candidate registering for Mobile Crane Operator exams at the same time) $50

The appropriate fees must be submitted with the practical exam application through the Test Site Coordinator. The same fees apply for retest exams.

PRACTICAL EXAM HAND SCORE REQUESTS

Candidates not passing the examination(s) may request from International Assessment Institute hand scoring of their answer sheets, provided the request is made in writing within three months of the test date. Hand scored practical exam reports include details of a candidate’s performance on each task.

Requests must be accompanied by a processing fee of $25 for each test requested. Request(s) should be mailed to:

International Assessment Institute
Attention:  NCCCO Testing
1960 Bayshore Boulevard
Dunedin, FL 34698
ph: (727) 449-8525
fax: (727) 461-2746

In the event that the hand scoring of a failing candidate’s answer sheet results in a passing score, the hand-scoring fee will be refunded in full.