The Basic Search
Enter one or more search terms (the words or phrase that best describe the information you want to find) into the search box and press the Search key.
Automatic "AND" Searches
By default, the search will return pages that include all of your search terms. There is no need to include "AND" between terms.
Word 1 Word 2
You can search for phrases by adding quotation marks. Words enclosed in double quotes ("like this") appear together in all returned documents. Phrase searches using quotation marks are useful when searching for specific titles or names.
"Word 1 Word 2"
To retrieve pages that include either word 1 or word 2, use an uppercase "OR" between terms. For example, to search for either Word 1 or Word 2, enter:
Word 1 OR Word 2
You can exclude a word from your search by putting a minus sign ("-") immediately in front of the term you want to exclude. Make sure you include a space before the minus sign.
Operational Improvements/Sustainments (OIs/OSs) represent distinct functional improvements to the National Airspace System (NAS) that provide direct benefits to the user community. This product section provides easy access to these OI descriptions, schedules, benefits, and all other underlying information.
An Operational Improvement/Sustainment (OI/OS) represents a discrete strategic activity for service delivery to improve NAS operations and move towards the Next Generation Air Transportation System (NextGen) vision. In addition, Operational Sustainments (OSs) are activities and services that will be sustained in the NAS. This feature allows you to interactively browse through the available OIs and OSs including the ability to apply filters and to drill down for further details.
Quick Finders are simplified searching features that are optimized for finding information in a particular type of data element. The Quick Finder listed below allows you to search for information related to the key data elements for this product section.
Hover mouse over search box for further instructions.