[67 FR 54928, Aug. 26, 2002, as amended at 74 FR 15635, Apr. 6, 2009; 75 FR 17561, Apr. 7, 2010]

(usually 84 months (28 quarters)). [67 FR 485, Jan. 4, 2002, as amended at 68 FR 37954, June 26, 2003]

[67 FR 54739, Aug. 26, 2002]

, 1978, as amended at 44 FR 61598, Oct. 26, 1979]

. [56 FR 29192, June 26, 1991, as amended at 81 FR 3009, Jan. 20, 2016]

considers necessary to prevent the introduction, transmission, or spread of communicable diseases. [68 FR 17559, Apr. 10, 2003, as amended at 77 FR 75891, Dec. 26, 2012]

12541, Mar. 25, 1983, as amended at 58 FR 30667, May 26, 1993]

part. [51 FR 41339, Nov. 14, 1986, as amended at 57 FR 24981, June 12, 1992; 58 FR 30668, May 26, 1993; 59 FR 6577, Feb. 11, 1994; 66 FR 55328, Nov. 1, 2001; 75 FR 73613, Nov. 29, 2010]

before January 31 of the year following the calendar year to which such returns relate. (c) Applicability date. This section applies to returns filed on or after January 30, 2020. Section 1.6041-6T (as contained in 26 CFR part 1, revised April 2019) applies to returns filed before January 30, 2020. [T.D. 9892,

. 26, 1996]

FR 15526, Mar. 11, 1980; T.D. 7803, 47 FR 3547, Jan. 26, 1982]

. 5074, 29 FR 15695, Nov. 24, 1964, as amended by Amdt. 27-2, 22 FR 964, Jan. 26, 1968]

[Amdt. 29-26, 53 FR 34219, Sept. 2, 1988, as amended by Amdt. 29-34, 59 FR 47768, Sept. 16, 1994]

[Doc. No. 3025, 29 FR 7453, June 10, 1964, as amended by Amdt. 33-6, 39 FR 35469, Oct. 1, 1974; Amdt. 33-26, 73 FR 48285, Aug. 19, 2008; Amdt. 33-27, 73 FR 55437, Sept. 25, 2008; Amdt. 33-27, 73 FR 57235, Oct. 2, 2008]

, Aug. 26, 2011; Amdt. 71-44, 77 FR 50908, Aug. 23, 2012; Amdt. 71-45, 78 FR 52848, Aug. 27, 2013; Amdt. 71-46, 79 FR 51888, Sept. 2, 2014; Amdt. 71-47, 80 FR 51937, Aug. 27, 2015; Docket FAA-2016-8926, Amdt. 71-48, 81 FR 55372, Aug. 19, 2016; Docket FAA-2017-0798, Amdt. 71-49, 82 FR 40068, Aug. 24, 2017; Docket FAA-2018-0770, Amdt. 71-50, 83 FR 43757, Aug. 28, 2018; Docket FAA-2019-0627, Amdt. 71-51,

by reference, see §71.1) contains at least one primary airport around which the airspace is designated. [Doc. No. 29334, 73 FR 54495, Sept. 22, 2008, as amended by Amdt. 71-40, 73 FR 60940, Oct. 15, 2008; Amdt. 71-41, 74 FR 46490, Sept. 10, 2009; Amdt. 71-42, 75 FR 55269, Sept. 10, 2010; Amdt. 71-43, 76 FR 53329, Aug. 26, 2011; Amdt. 71-44, 77 FR 50908

by reference, see §71.1) contains at least one primary airport around which the airspace is designated. [Doc. No. 29334, 73 FR 54495, Sept. 22, 2008, as amended by Amdt. 71-40, 73 FR 60940, Oct. 15, 2008; Amdt. 71-41, 74 FR 46490, Sept. 10, 2009; Amdt. 71-42, 75 FR 55269, Sept. 10, 2010; Amdt. 71-43, 76 FR 53329, Aug. 26, 2011; Amdt. 71-44, 77 FR 50908

and the location of the centers. [Doc. No. 6258, 29 FR 19195, Dec. 31, 1964, as amended by Amdt. 121-253, 61 FR 2611, Jan. 26, 1996]

. 25, 1989; Amdt. 121-253, 61 FR 2611, Jan. 26, 1996; Docket FAA-2018-0119, Amdt. 121-380, 83 FR 9173, Mar. 5, 2018]

; and (2) Consist of at least one flight over a part of a Federal airway, foreign airway, or advisory route over which the pilot may be assigned. [Doc. No. 9509, 35 FR 96, Jan. 3, 1970, as amended by Amdt. 121-143, 43 FR 22642, May 25, 1978; Amdt. 121-253, 61 FR 2612, Jan. 26, 1996; Amdt. 121-344, 74 FR 34235, July 15, 2009; Amdt. 121-359, 77 FR 34785, June 12, 2012]

before the pilot is again scheduled for flight duty on any route. (c) No pilot may fly as a flight crewmember more than— (1) 350 hours during any 90 consecutive days; or (2) 1,000 hours during any 12-calendar-month period. [Doc. No. 6258, 29 FR 19217, Dec. 31, 1964; 30 FR 3639, Mar. 19, 1965, as amended by Amdt. 121-253, 61 FR 2612, Jan. 26, 1996]

life or property. [Doc. No. 6258, 29 FR 19219, Dec. 31, 1964, as amended by Amdt. 121-253, 61 FR 2613, Jan. 26, 1996]

[Doc. No. 6258, 29 FR 19219, Dec. 31, 1964, as amended by Amdt. 121-253, 61 FR 2614, Jan. 26, 1996; Amdt. 121-333, 72 FR 31682, June 7, 2007]

[ER-755, 37 FR 19726, Sept. 21, 1972, as amended by ER-1027, 42 FR 60127, Nov. 25, 1977; ER-1188, 45 FR 48870, July 22, 1980; 60 FR 66723, 66725, Dec. 26, 1995]

at 60 FR 66723, Dec. 26, 1995; 67 FR 49223, July 30, 2002; 75 FR 41583, July 16, 2010]

21, Jan. 2, 1985, as amended by Doc. No. 47939, 57 FR 40104, Sept. 2, 1992; 60 FR 66726, Dec. 26, 1995]

the United States Code (Transportation) by a staff member pursuant to assignment under this part. Staff members means officers and employees of the Department who are assigned authority under this part. [Doc. No. T-1, 49 FR 50985, Dec. 31, 1984, as amended by Amdt. 1-261, 59 FR 10061, Mar. 3, 1994; 60 FR 66726, Dec. 26, 1995; Doc. No. OST-96-1268, 61 FR 19167, May 1, 1996; Doc

Where, under sections 934 to 939 of this title, or under special Acts of Congress, or under the laws of the former Territories of Oklahoma and Arizona, railroads have been constructed and were on June 26, 1906, in operation in Oklahoma or Arizona which passed through any of the lands theretofore reserved for said Territories, such lands shall be

in paragraph (a) of this section. A recipient may meet the requirement of this paragraph either by including appropriate inserts in existing materials and publications or by revising and reprinting the materials and publications. [45 FR 14535, Mar. 6, 1980, as amended at 68 FR 51345, Aug. 26, 2003]

section 490.603 shall pay a criminal fine of not more than $50,000 for each violation. [61 FR 10653, Mar. 14, 1996, as amended at 62 FR 46183, Sept. 2, 1997; 74 FR 66032, Dec. 14, 2009; 79 FR 19, Jan. 2, 2014; 81 FR 41794, June 28, 2016; 81 FR 96351, Dec. 30, 2016; 83 FR 1291, Jan. 11, 2018; 83 FR 66083, Dec. 26, 2018;