Unemployed persons are people aged 16 years or older who had no employment, are available for work, except for temporary illness, and make no specific efforts to find employment in the past four weeks. The Bureau of Labor Statistics produces industry estimates of nonfarm payroll employment as part of the Current Population Survey. Employment data are seasonally adjusted to remove the effects of normal seasonal variation.

Air carriers include scheduled and non-scheduled commercial passenger flights as well as cargo flights under FAR Part 121. The National Transportation Safety Board releases aviation fatality data in the Aviation Accident Database.

Total reportable fatalities. Fatalities may be reclassified upon subsequent reporting. The Federal Railroad Administration collects accident/incident and operational data from railroads.

Number of personal vehicle passengers, train passengers, bus passengers, and pedestrians entering the United States from Mexico. The Bureau of Transportation of Statistics releases incoming border crossing statistics using data collected at ports of entry by U.S. Customs and Border Protection.

Total value of merchandise freight for United States exports to and imports from Canada. The Bureau of Transportation Statistics releases freight data using a special tabulation of official international trade statistics that are collected by the U.S. Customs and Border Protection and processed and validated by the U.S. Census Bureau, Foreign Trade Division.

Number of trucks entering the United States from Canada. The Bureau of Transportation of Statistics releases incoming border crossing statistics using data collected at ports of entry by U.S. Customs and Border Protection.

Employed persons include people aged 16 years and older in the civilian noninstitutional population who did any work at all as paid employees; worked in their own business, profession, or on their own farm, or worked 15 hours or more as unpaid workers in an enterprise operated by a member of the family; and all those who were not working but who had jobs or businesses from which they were temporarily absent. The Bureau of Labor Statistics produces industry estimates of nonfarm payroll employment as part of the Current Population Survey.

Number of personal vehicle passengers, train passengers, bus passengers, and pedestrians entering the United States from Canada. The Bureau of Transportation of Statistics releases incoming border crossing statistics using data collected at ports of entry by U.S. Customs and Border Protection.

The U.S. Census Bureau provides monthly estimates of the total dollar value of construction work done in the United States as part of the Value of Construction Put in Place Survey (VIP). Includes construction related to passenger terminals, runways, pavement and lighting, hangars, air freight terminals, space facilities, air traffic towers, aircraft storage and maintenance buildings.

Rail fatalities at highway-rail grade crossings. Fatalities may be reclassified upon subsequent reporting. The Federal Railroad Administration collects accident/incident and operational data from railroads.