Necessary

Also found in: Dictionary, Thesaurus, Medical, Legal, Acronyms, Idioms, Encyclopedia, Wikipedia.
Related to Necessary: Necessary and sufficient

Necessary

An expense that is appropriate and helpful in furthering the taxpayer's business or income-producing activity. See also Ordinary defined elsewhere in this glossary.

References in periodicals archive ?

These systems are already working, say ranchers; therefore, the NAIS is not necessary.

Need-to-know info on animal ID: the USDA has targeted farms and livestock facilities, and their livestock, for intrusive, unnecessary, and eventually mandatory identification and tracking regulations

By looking at the delta between what the trainee knows and what he or she needs to know, we can determine the training interventions necessary.

Developing a competency-based organization: applying the Navy's uniformed human capital concepts to the civilian workforce

Some third-party financial assistance is therefore necessary, but it must be minimized because it impedes the market's effectiveness by relieving parents of direct financial responsibility.

Let a thousand choices bloom: debating the future of education reform

v], It is not necessary to make a precise measurement of the neutron polarization.

On the measurement of the electron-neutrino correlation in neutron beta decay

If necessary, the NCBI can also conduct special on-site examinations.

Orders issued under International Banking Act

To examine the distal trachea or lower airway, it is necessary to use a longer flexible endoscope, such as a bronchoscope or a transnasal esophagoscope.

Office evaluation of the tracheobronchial tree

That is, in other approaches it is necessary for each robot to have the same number of steps in their programs, which can necessitate "phantom" steps for robots that don't need to perform as many moves as others.

De-commoditizing the robot: when your products are considered to be fairly fungible with those of your competitors, you can make incremental improvements and hope they are sufficient or you can take a bigger risk and try to make a big difference. The latter is what the people at Motoman selected

While the level of procedural and administrative change will vary by agency, all organizations pursuing accreditation must remain open to any changes necessary.

A small police department's success

The laboratory using a method is responsible for ensuring that it is adequately validated, and if necessary, for carrying out further work to supplement existing data.

An overview of method validation--part 1

Equipment and processes will change as necessary to develop unique properties.

Building the future: engineering in 2015; as the paper industry changes, it must also change its approach to engineering and project management

212 activity are generally deductible if they are (among other things) ordinary, necessary and reasonable, and directly connected to (or proximately result from) the taxpayer's trade or business.

Deducting legal fees for governmental corporate investigations

Because our fleet management effort required parts marking as a key enabler, another solution was necessary.