Title I Technical Assistance Manual

2.3(b) Job Analysis and the "Essential Functions" of a Job

The ADA does not require that an employer conduct a job analysis or any particular form of job analysis to identify the essential functions of a job. The information provided by a job analysis may or may not be helpful in properly identifying essential job functions, depending on how it is conducted.

The term "job analysis" generally is used to describe a formal process in which information about a specific job or occupation is collected and analyzed. Formal job analysis may be conducted by a number of different methods. These methods obtain different kinds of information that is used for different purposes. Some of these methods will not provide information sufficient to determine if an individual with a disability is qualified to perform "essential" job functions.

For example: One kind of formal job analysis looks at specific job tasks and classifies jobs according to how these tasks deal with data, people, and objects. This type of job analysis is used to set wage rates for various jobs; however, it may not be adequate to identify the essential functions of a particular job, as required by the ADA. Another kind of job analysis looks at the kinds of knowledge, skills, and abilities that are necessary to perform a job. This type of job analysis is used to develop selection criteria for various jobs. The information from this type of analysis sometimes helps to measure the importance of certain skills, knowledge and abilities, but it does not take into account the fact that people with disabilities often can perform essential functions using other skills and abilities.

Some job analysis methods ask current employees and their supervisors to rate the importance of general characteristics necessary to perform a job, such as "strength," "endurance," or "intelligence," without linking these characteristics to specific job functions or specific tasks that are part of a function. Such general information may not identify, for example, whether upper body or lower body "strength" is required, or whether muscular endurance or cardiovascular "endurance" is needed to perform a particular job function. Such information, by itself, would not be sufficient to determine whether an individual who has particular limitations can perform an essential function with or without an accommodation.

As already stated, the ADA does not require a formal job analysis or any particular method of analysis to identify the essential functions of a job. A small employer may wish to conduct an informal analysis by observing and consulting with people who perform the job or have previously performed it and their supervisors. If possible, it is advisable to observe and consult with several workers under a range of conditions, to get a better idea of all job functions and the different ways they may be performed. Production records and workloads also may be relevant factors to consider.

To identify essential job functions under the ADA, a job analysis should focus on the purpose of the job and the importance of actual job functions in achieving this purpose. Evaluating "importance" may include consideration of the frequency with which a function is performed, the amount of time spent on the function, and the consequences if the function is not performed. The analysis may include information on the work environment (such as unusual heat, cold, humidity, dust, toxic substances or stress factors). The job analysis may contain information on the manner in which a job currently is performed, but should not conclude that ability to perform the job in that manner is an essential function, unless there is no other way to perform the function without causing undue hardship. A job analysis will be most helpful for purposes of the ADA if it focuses on the results or outcome of a function, not solely on the way it customarily is performed.

For example:

• An essential function of a computer programmer job might be described as "ability to develop programs that accomplish necessary objectives," rather than "ability to manually write programs." Although a person currently performing the job may write these programs by hand, that is not the essential function, because programs can be developed directly on the computer.

• If a job requires mastery of information contained in technical manuals, this essential function would be "ability to learn technical material," rather than "ability to read technical manuals." People with visual and other reading impairments could perform this function using other means, such as audiotapes.

• A job that requires objects to be moved from one place to another should state this essential function. The analysis may note that the person in the job "lifts 50 pound cartons to a height of 3 or 4 feet and loads them into truck-trailers 5 hours daily," but should not identify the "ability to manually lift and load 50 pound cartons" as an essential function unless this is the only method by which the function can be performed without causing an undue hardship.

A job analysis that is focused on outcomes or results also will be helpful in establishing appropriate qualification standards, developing job descriptions, conducting interviews, and selecting people in accordance with ADA requirements. It will be particularly useful in helping to identify accommodations that will enable an individual with specific functional abilities and limitations to perform the job. (See Chapter III.)