The National Transportation Safety Board is an independent U.S. government investigative agency responsible for civil transportation accident investigation. In this role, the NTSB investigates and reports on aviation accidents and incidents, certain types of highway crashes, ship and marine accidents, pipeline incidents, and railroad accidents. When requested, the NTSB will assist the military and foreign governments with accident investigation. The NTSB is also in charge of investigating cases of hazardous materials releases that occur during transportation. The agency is based in Washington, D.C. It has four regional offices located in Anchorage, Alaska; Denver, Colorado; Ashburn, Virginia; and Seattle, Washington. The agency also operates a national training center at its Ashburn facility. More information...
Multilingual Wikipedia
In June 2020 the website ntsb.gov was on the 1,247th place in the ranking of the most reliable and popular sources in multilingual Wikipedia from readers' point of view (PR-score). If we consider only frequency of appearance of this source in references of Wikipedia articles (F-score), this website was on the 1,645th place in June 2020. From Wikipedians' point of view, "ntsb.gov" is the 1,654th most reliable source in different language versions of Wikipedia (AR-score).
The website is placed before realmadrid.com and after rateyourmusic.com in multilingual PR ranking of the most reliable sources in Wikipedia.
PR-score:

1,247
th place
29,324,432
-5,951,883
AR-score:

1,654
th place
3,114,065
+37,831
F-score:

1,645
th place
9,391
+128
English Wikipedia (en)
PR-score:

827
th place
23,877,431
-5,795,785
AR-score:

903
rd place
2,403,467
+32,880
F-score:

974
th place
4,999
+53
German Wikipedia (de)
PR-score:

1,165
th place
1,664,777
+339,115
AR-score:

1,771
st place
177,107
+670
F-score:

1,880
th place
365
0
Japanese Wikipedia (ja)
PR-score:

1,636
th place
1,093,078
-112,749
AR-score:

2,006
th place
70,114
+547
F-score:

860
th place
657
+4
French Wikipedia (fr)
PR-score:

2,003
rd place
679,365
-12,504
AR-score:

2,757
th place
97,546
+598
F-score:

1,095
th place
802
+4
Chinese Wikipedia (zh)
PR-score:

2,231
st place
455,883
-45,353
AR-score:

1,782
nd place
46,794
+1,610
F-score:

1,369
th place
279
+12
Russian Wikipedia (ru)
PR-score:

4,989
th place
391,825
-133,113
F-score:

1,480
th place
524
+1
Spanish Wikipedia (es)
PR-score:

5,924
th place
357,536
-119,084
AR-score:

4,613
th place
53,672
-2,085
F-score:

1,698
th place
416
+2
Italian Wikipedia (it)
PR-score:

2,815
th place
244,069
-44,015
AR-score:

4,556
th place
34,714
+1,052
F-score:

1,768
th place
244
+33
Portuguese Wikipedia (pt)
PR-score:

2,952
nd place
242,784
+75,468
AR-score:

3,520
th place
28,568
+1,230
F-score:

2,532
nd place
157
+10
Polish Wikipedia (pl)
PR-score:

7,401
st place
63,922
-28,006
AR-score:

6,377
th place
12,643
+16
F-score:

5,649
th place
58
0
Czech Wikipedia (cs)
PR-score:

3,415
th place
48,650
-4,326
AR-score:

4,065
th place
6,934
+4
F-score:

3,255
th place
36
0
Arabic Wikipedia (ar)
PR-score:

6,096
th place
28,032
+257
AR-score:

2,684
th place
21,298
+135
F-score:

3,106
th place
80
+1
Dutch Wikipedia (nl)
PR-score:

7,310
th place
27,546
-6,697
AR-score:

2,817
th place
18,127
+287
F-score:

1,958
th place
46
0
Finnish Wikipedia (fi)
PR-score:

3,813
th place
20,997
-4,725
AR-score:

6,000
th place
6,030
+13
F-score:

2,843
rd place
61
0
Danish Wikipedia (da)
PR-score:

2,605
th place
16,350
-4,731
AR-score:

3,531
st place
4,305
0
F-score:

1,297
th place
38
0
Korean Wikipedia (ko)
PR-score:

6,545
th place
12,309
-3,941
AR-score:

4,820
th place
3,662
+28
F-score:

2,289
th place
30
0
Swedish Wikipedia (sv)
PR-score:

8,185
th place
11,443
+199
AR-score:

8,458
th place
4,789
-191
F-score:

5,643
rd place
19
0
Simple English Wikipedia (simple)
PR-score:

2,759
th place
9,367
-2,216
AR-score:

3,730
th place
3,365
+15
F-score:

1,981
st place
21
0
Persian Wikipedia (fa)
PR-score:

10,612
th place
7,643
-401
AR-score:

10,747
th place
2,095
+56
F-score:

3,119
th place
27
+2
Thai Wikipedia (th)
PR-score:

6,490
th place
6,972
-4,289
AR-score:

3,771
st place
2,892
0
F-score:

4,305
th place
10
0
Ukrainian Wikipedia (uk)
PR-score:

12,547
th place
6,935
-14,179
AR-score:

8,736
th place
3,452
+9
F-score:

3,871
st place
50
0
Indonesian Wikipedia (id)
PR-score:

10,779
th place
6,646
-2,580
AR-score:

5,067
th place
3,692
+117
F-score:

3,620
th place
33
+6
Galician Wikipedia (gl)
PR-score:

740
th place
5,665
-799
AR-score:

778
th place
7,503
+158
F-score:

266
th place
157
0
Norwegian Wikipedia (no)
PR-score:

6,537
th place
5,410
-4,476
AR-score:

4,140
th place
6,765
0
F-score:

2,759
th place
32
0
Turkish Wikipedia (tr)
PR-score:

16,098
th place
5,175
-3,099
AR-score:

13,562
nd place
1,934
+40
F-score:

5,508
th place
15
+1
Hungarian Wikipedia (hu)
PR-score:

13,478
th place
5,133
-3,931
AR-score:

5,342
nd place
4,502
+17
F-score:

4,585
th place
20
0
Vietnamese Wikipedia (vi)
PR-score:

13,490
th place
5,035
-2,389
AR-score:

4,321
st place
4,219
+32
F-score:

4,667
th place
27
0
Hebrew Wikipedia (he)
PR-score:

8,679
th place
4,787
-915
AR-score:

6,338
th place
3,703
+4
F-score:

6,171
st place
7
0
Romanian Wikipedia (ro)
PR-score:

9,477
th place
3,881
-3,345
AR-score:

7,459
th place
1,532
0
F-score:

4,841
st place
13
0
Slovak Wikipedia (sk)
PR-score:

6,136
th place
2,576
-840
AR-score:

8,216
th place
597
0
F-score:

2,620
th place
10
0
Greek Wikipedia (el)
PR-score:

14,836
th place
2,070
-566
AR-score:

37,055
th place
101
0
F-score:

13,522
nd place
4
0
Estonian Wikipedia (et)
PR-score:

5,366
th place
1,237
-3,186
AR-score:

5,199
th place
944
+37
F-score:

3,411
th place
11
0
Malay Wikipedia (ms)
PR-score:

6,909
th place
1,207
-197
AR-score:

5,047
th place
808
+1
F-score:

3,007
th place
13
0
Slovenian Wikipedia (sl)
PR-score:

5,335
th place
1,139
-992
AR-score:

8,261
st place
274
+1
F-score:

3,906
th place
5
0
Afrikaans Wikipedia (af)
PR-score:

2,577
th place
1,052
+58
AR-score:

17,259
th place
21
0
F-score:

15,192
nd place
1
0
Esperanto Wikipedia (eo)
PR-score:

2,358
th place
783
-500
AR-score:

8,292
nd place
383
0
F-score:

5,565
th place
3
0
Macedonian Wikipedia (mk)
PR-score:

4,289
th place
748
-367
AR-score:

4,339
th place
598
0
F-score:

8,556
th place
2
0
Catalan Wikipedia (ca)
PR-score:

25,720
th place
698
-310
AR-score:

22,622
nd place
1,031
0
F-score:

7,534
th place
16
0
Serbian Wikipedia (sr)
PR-score:

21,368
th place
662
-152
AR-score:

20,837
th place
395
0
F-score:

16,119
th place
3
0
Hindi Wikipedia (hi)
PR-score:

8,554
th place
505
-119
AR-score:

13,781
st place
165
+6
F-score:

2,357
th place
10
0
Sinhalese Wikipedia (si)
PR-score:

1,354
th place
439
+9
AR-score:

913
th place
302
0
F-score:

2,875
th place
2
0
Armenian Wikipedia (hy)
PR-score:

11,804
th place
385
-1,206
AR-score:

8,238
th place
617
+11
F-score:

5,250
th place
12
0
Yoruba Wikipedia (yo)
PR-score:

1,010
th place
354
-34
AR-score:

1,300
th place
285
0
F-score:

425
th place
4
0
Bulgarian Wikipedia (bg)
PR-score:

25,506
th place
350
-122
AR-score:

26,578
th place
213
0
F-score:

28,710
th place
1
0
Tagalog Wikipedia (tl)
PR-score:

3,734
th place
349
+34
AR-score:

4,564
th place
230
0
F-score:

1,747
th place
6
0
Asturian Wikipedia (ast)
PR-score:

10,829
th place
218
-268
AR-score:

7,581
st place
421
0
F-score:

1,858
th place
28
0
Azerbaijani Wikipedia (az)
PR-score:

11,456
th place
210
-77
AR-score:

7,842
nd place
342
0
F-score:

3,013
th place
10
0
Croatian Wikipedia (hr)
PR-score:

24,238
th place
141
-150
AR-score:

22,469
th place
102
0
F-score:

14,204
th place
2
0
Burmese Wikipedia (my)
PR-score:

3,576
th place
122
-109
AR-score:

3,189
th place
80
0
F-score:

1,158
th place
4
0
Javanese Wikipedia (jv)
PR-score:

4,885
th place
100
+20
AR-score:

5,507
th place
200
0
F-score:

8,593
rd place
1
0
Scots Wikipedia (sco)
PR-score:

10,724
th place
88
-20
AR-score:

16,855
th place
7
0
F-score:

12,629
th place
1
0
Kannada Wikipedia (kn)
PR-score:

7,408
th place
67
-36
AR-score:

5,556
th place
113
0
F-score:

2,008
th place
6
0
Telugu Wikipedia (te)
PR-score:

9,527
th place
50
+34
AR-score:

7,719
th place
83
0
F-score:

13,571
st place
1
0
Latvian Wikipedia (lv)
PR-score:

16,770
th place
50
+25
AR-score:

16,306
th place
75
0
F-score:

19,368
th place
1
0
Tamil Wikipedia (ta)
PR-score:

23,774
th place
46
-19
AR-score:

21,528
th place
75
0
F-score:

6,183
rd place
4
0
Serbo-Croatian Wikipedia (sh)
PR-score:

23,620
th place
38
-69
AR-score:

21,965
th place
30
0
F-score:

25,732
nd place
1
0
Gujarati Wikipedia (gu)
PR-score:

6,485
th place
28
0
AR-score:

5,009
th place
43
0
F-score:

5,643
rd place
1
0
Lithuanian Wikipedia (lt)
PR-score:

20,498
th place
20
-100
AR-score:

17,609
th place
60
0
F-score:

21,609
th place
1
0
Bengali Wikipedia (bn)
PR-score:

38,215
th place
14
-6
AR-score:

44,005
th place
8
-12
F-score:

34,962
nd place
1
-1
Marathi Wikipedia (mr)
PR-score:

6,145
th place
10
-10
AR-score:

3,255
th place
170
0
F-score:

1,825
th place
2
0
Albanian Wikipedia (sq)
PR-score:

18,360
th place
2
0
AR-score:

17,040
th place
6
0
F-score:

16,103
rd place
1
0