Example 1. O, a university alumni association, is exempt from federal income tax under section 501(a) as an educational organization described in section 501(c)(3). As part of its activities, O operates a travel tour program. The program is open to all current members of O and their guests. O works with travel agencies to schedule approximately 10 tours annually to various destinations around the world. Members of O pay $x to the organizing travel agency to participate in a tour. The travel agency pays O a per person fee for each participant. Although the literature advertising the tours encourages O's members to continue their lifelong learning by joining the tours, and a faculty member of O's related university frequently joins the tour as a guest of the alumni association, none of the tours includes any scheduled instruction or curriculum related to the destinations being visited. The travel tours made available to O's members do not contribute importantly to the accomplishment of O's educational purpose. Rather, O's program is designed to generate revenues for O by regularly offering its members travel services. Accordingly, O's tour program is an unrelated trade or business within the meaning of section 513(a).

Example 2. N is an organization formed for the purpose of educating individuals about the geography and culture of the United States. It is exempt from federal income tax under section 501(a) as an educational and cultural organization described in section 501(c)(3). N engages in a number of activities to accomplish its purposes, including offering courses and publishing periodicals and books. As one of its activities, N conducts study tours to national parks and other locations within the UnitedStates. The study tours are conducted by teachers and other personnel certified by the Board of Education of the State of P. The tours are directed toward students enrolled in degree programs at educational institutions in P, as reflected in the promotional materials, but are open to all who agree to participate in the required study program. Each tour's study program consists of instruction on subjects related to the location being visited on the tour. During the tour, five or six hours per day are devoted to organized study, preparation of reports, lectures, instruction and recitation by the students. Each tour group brings along a library of material related to the subject being studied on the tour. Examinations are given at the end of each tour and the P StateBoard of Education awards academic credit for tour participation. Because the tours offered by N include a substantial amount of required study, lectures, report preparation, examinations and qualify for academic credit, the tours are substantially related to N's educational purpose. Accordingly, N's tour program is not an unrelated trade or business within the meaning of section 513(a).

Example 3. R is a section 501(c)(4) social welfare organization devoted to advocacy on a particular issue. On a regular basis throughout the year, R organizes travel tours for its members to Washington, DC. While in Washington, the members follow a schedule according to which they spend substantially all of their time during normal business hours over several days attending meetings with legislators and government officials and receiving briefings on policy developments related to the issue that is R's focus. Members do have some time on their own in the evenings to engage in recreational or social activities of their own choosing. Bringing members to Washington to participate in advocacy on behalf of the organization and learn about developments relating to the organization's principal focus is substantially related to R's social welfare purpose. Therefore, R's operation of the travel tours does not constitute an unrelated trade or business within the meaning of section 513(a).

Example 4. S is a membership organization formed to foster cultural unity and to educate X Americans about X, their country of origin. It is exempt from federal income tax under section 501(a) and is described in section 501(c)(3) as an educational and cultural organization. Membership in S is open to all Americans interested in the X heritage. As part of its activities, S sponsors a program of travel tours to X. The tours are divided into two categories. Category A tours are trips to X that are designed to immerse participants in the X history, culture and language. Substantially all of the daily itinerary includes scheduled instruction on the X language, history and cultural heritage, and visits to destinations selected because of their historical or cultural significance or because of instructional resources they offer. Category B tours are also trips to X, but rather than offering scheduled instruction, participants are given the option of taking guided tours of various X locations included in their itinerary. Other than the optional guided tours, Category B tours offer no instruction or curriculum. Destinations of principally recreational interest, rather than historical or cultural interest, are regularly included on Category B tour itineraries. Based on the facts and circumstances, sponsoring Category A tours is an activity substantially related to S's exempt purposes, and does not constitute an unrelated trade or business within the meaning of section 513(a). However, sponsoring Category B tours does not contribute importantly to S's accomplishment of its exempt purposes and, thus, constitutes an unrelated trade or business within the meaning of section 513(a).

Example 5. T is a scientific organization engaged in environmental research. T is exempt from federal income tax under section 501(a) as an organization described in section 501(c)(3). T is engaged in a long-term study of how agricultural pesticide and fertilizer use affects the populations of various bird species. T collects data at several bases located in an important agricultural region of country U. The minutes of a meeting of T's Board of Directors state that, after study, the Board has determined that non-scientists can reliably perform needed data collection in the field, under supervision of T's biologists. The Board minutes reflect that the Board approved offering one-week trips to T's bases in U, where participants will assist T's biologists in collecting data for the study. Tour participants collect data during the same hours as T's biologists. Normally, data collection occurs during the early morning and evening hours, although the work schedule varies by season. Each base has rustic accommodations and few amenities, but country U is renowned for its beautiful scenery and abundant wildlife. T promotes the trips in its newsletter and on its Internet site and through various conservation organizations. The promotional materials describe the work schedule and emphasize the valuable contribution made by trip participants to T's research activities. Based on the facts and circumstances, sponsoring trips to T's bases in country U is an activity substantially related to T's exempt purpose, and, thus, does not constitute an unrelated trade or business within the meaning of section 513(a).

Example 6. V is an educational organization devoted to the study of ancient history and cultures and is exempt from federal income tax under section 501(a) as an organization described in section 501(c)(3). In connection with its educational activities, V conducts archaeological expeditions around the world, including in the Y region of country Z. In cooperation with the National Museum of Z, V recently presented an exhibit on ancient civilizations of the Y region of Z, including artifacts from the collection of the Z National Museum. V instituted a program of travel tours to V's archaeological sites located in the Y region. The tours were initially proposed by V staff members as a means of educating the public about ongoing field research conducted by V. V engaged a travel agency to handle logistics such as accommodations and transportation arrangements. In preparation for the tours, V developed educational materials relating to each archaeological site to be visited on the tour, describing in detail the layout of the site, the methods used by V's researchers in exploring the site, the discoveries made at the site, and their historical significance. V also arranged special guided tours of its exhibit on the Y region for individuals registered for the travel tours. Two archaeologists from V (both of whom had participated in prior archaeological expeditions in the Y region) accompanied the tours. These experts led guided tours of each site and explained the significance of the sites to tour participants. At several of the sites, tour participants also met with a working team of archaeologists from V and the National Museum of Z, who shared their experiences. V prepared promotional materials describing the educational nature of the tours, including the daily trips to V's archaeological sites and the educational background of the tour leaders, and providing a recommended reading list. The promotional materials do not refer to any particular recreational or sightseeing activities. Based on the facts and circumstances, sponsoring trips to the Y region is an activity substantially related to V's exempt purposes. The scheduled activities, which include tours of archaeological sites led by experts, are part of a coordinated educational program designed to educate tour participants about the ancient history of the Y region of Z and V's ongoing field research. Therefore, V's tour program does not constitute an unrelated trade or business within the meaning of section 513(a).

Example 7. W is an educational organization devoted to the study of the performing arts and is exempt from federal income tax under section 501(a) as an organization described in section 501(c)(3). In connection with its educational activities, W presents public performances of musical and theatrical works. Individuals become members of W by making an annual contribution to W of $q. Each year, W offers members an opportunity to travel as a group to one or more major cities in the United States or abroad. In each city, tour participants are provided tickets to attend a public performance of a play, concert or dance program each evening. W also arranges a sightseeing tour of each city and provides evening receptions for tour participants. W views its tour program as an important means to develop and strengthen bonds between W and its members, and to increase their financial and volunteer support of W. W engaged a travel agency to handle logistics such as accommodations and transportation arrangements. No educational materials are prepared by W or provided to tour participants in connection with the tours. Apart from attendance at the evening cultural events, the tours offer no scheduled instruction, organized study or group discussion. Although several members of W's administrative staff accompany each tour group, their role is to facilitate member interaction. The staff members have no special expertise in the performing arts and play no educational role in the tours. W prepared promotional materials describing the sightseeing opportunities on the tours and emphasizing the opportunity for members to socialize informally and interact with one another and with W staff members, while pursuing shared interests. Although W's tour program may foster goodwill among W members, it does not contribute importantly to W's educational purposes. W's tour program is primarily social and recreational in nature. The scheduled activities, which include sightseeing and attendance at various cultural events, are not part of a coordinated educational program. Therefore, W's tour program is an unrelated trade or business within the meaning of section 513(a).