ANSI/ASME B30.5 – Mobile and Locomotive Cranes2022-01-28T10:02:20-05:00


Mobile and Locomotive Cranes

Standard Number


Latest Revision





Per ANSI, “ASME B30.5 is one of ASME’s most requested safety standards—widely respected and applied throughout the building and construction industry. It addresses crawler cranes, locomotive cranes, wheel-mounted cranes, and any variations thereof that retain the same fundamental characteristics and are powered by internal combustion engines or electric motors.

The scope of this Safety Standard includes only cranes of the above types that are powered by internal combustion engines or electric motors. Side boom tractors and cranes designed for railway and automobile wreck clearance, digger derricks, cranes manufactured specifically for, or when used for, energized electrical line service, knuckle boom, trolley boom cranes, and cranes having a maximum rated capacity of one ton or less are excluded.”

ASME B30.5 has been updated to include the requirement for a qualified rigger on any jobsite in any industry where a mobile crane is used. Only the employer may designate the rigger(s) as qualified and this designation must be based on evidence of successful completion of a written and practical examination covering 4 key areas.

Further guidance on the new standard.

More information on the difference between rigger certifications and rigger qualifications,

Explore options for rigger training.

Book training that will enable you to designate your riggers as qualified.

Revised December 16th, 2021, ASME B30.5 is the mobile crane standard.

The recently revised ASME B30.5 standard includes changes to operator qualifications.

The most significant change to appear in the newly revised ASME B30.5 (the mobile crane standard) is the addition of requirements for rigger qualifications. Wherever a mobile crane is in use, there must be a qualified rigger (defined as someone who has passed written and practical exams meeting certain criteria).

The 2021 revision of ASME B30.5 (the mobile crane standard) includes an update to inspection requirements.

The newly revised ASME B30.5 (the mobile crane standard) also includes updates for signalpersons.

Before diving into ASME B30.5, it’s important to understand what is covered in this mobile crane standard.

The Personnel Competence paragraph is critical in shaping and understanding the requirements of ASME B30.5, the mobile crane standard.

An overview of the section in ASME B30.5 on crane construction and characteristics.

ASME B30.5 specifies the frequency of various types of crane inspections.

There is a very important difference between the words ‘should’ and ‘shall’ as they are used in ASME B30.5

There are occasions when it’s not just the crane operator who needs to operate the crane. ASME B30.5 explains those situations.

ASME B30.5 specifies the qualifications a crane operator must have.

There are a lot of responsibilities on the job site. ASME B30.5 (2021) lists them and explains who should be assigned what.

There is an umbrella of responsibilities that must be assigned under ASME B30.5

The role of Lift Director is always filled on a mobile crane jobsite. ASME B30.5 explains their responsibilities.

Per ASME B30.5, the responsibilities of a crane operator are surprisingly limited.

Understanding the responsibilities of a rigger is incredibly important. ASME B30.5 outlines them.

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