The cornerstone of any national registration system: passenger plates for more or less common people. These plates are black on white with a "one letter-three digits-two letters" structure. There is a regional code, Russian national flag (not mandatory) and the "RUS" inscription in the right part of the plate.

Below are regional codes you can find at most of the Russian plates varying from citizen to diplomatic and police plates.
Useful Links:
1). Images
2). GOST (Russian National Standard) On License Plates
01 Adygeya Republic
02 Bashkortostan Republic
03 Buryatiya Republic
04 Altay Republic
05 Dagestan Republic
06 Ingushetiya Republic
07 Kabardino-Balkariya Republic
08 Kalmykiya Republic
09 Karachayevo-Cherkesiya Republic
10 Kareliya Republic
11 Komi Republic
12 Mariy-El Republic
13 Mordoviya Republic
14 Sakha (Yakutia) Republic
15 Severnaya Osetiya-Alaniya Republic
16 Tatarstan Republic
17 Tuva Republic
18 Udmurtiya Republic
19 Khakasiya Republic
20 Chechnya Republic
21 Chuvashiya Republic
22 Altayskiy Krai
23 Krasnodarskiy Krai
24 Krasnoyarskiy Krai
25 Primorskiy Krai
26 Stavropol'skiy Krai
27 Khabarovskiy Krai
28 Amurskaya Oblast
29 Arkhangel Oblast
30 Astrakhan Oblast
31 Belgorod Oblast
32 Bryansk Oblast
33 Vladimir Oblast
34 Volgograd Oblast
35 Vologda Oblast
36 Voronezh Oblast
37 Ivanovo Oblast
38 Irkutsk Oblast
39 Kaliningrad Oblast
40 Kaluga Oblast
41 Kamchatka Oblast
42 Kemerovo Oblast
43 Kirov Oblast
44 Kostroma Oblast
45 Kurgan Oblast
46 Kursk Oblast
47 Leningrad Oblast
48 Lipetsk Oblast
49 Magadan Oblast
50 Moscow Oblast
51 Murmansk Oblast
52 Nizhny Novgorod Oblast
53 Novgorod Oblast
54 Novosibirsk Oblast
55 Omsk Oblast
56 Orenburg Oblast
57 Oryol Oblast
58 Penza Oblast
59 Perm Oblast
60 Pskov Oblast
61 Rostov Oblast
62 Ryazan Oblast
63 Samara Oblast
64 Saratov Oblast
65 Sakhalin Oblast
66 Sverdlovsk Oblast
67 Smolensk Oblast
68 Tambov Oblast
69 Tver Oblast
70 Tomsk Oblast
71 Tula Oblast
72 Tyumen Oblast
73 Ulyanovsk Oblast
74 Chelyabinsk Oblast
75 Chita Oblast
76 Yaroslavl Oblast
77 Moscow City
78 St. Petersburg City
79 Evreiskaya Autonomous Oblast
80 Buryat Autonomous Okrug
81 Komi Autonomous Okrug
82 Koryak Autonomous Okrug
83 Nenets Autonomous Okrug
84 Taimyr Autonomous Okrug
85 Ust-Orda Buryat Autonomous Okrug
86 Khanty-Mansi Autonomous Okrug
87 Chukchi Autonomous Okrug
88 Evenki Autonomous Okrug
89 Yamal-Nenets Autonomous Okrug
90 Moscow Region
93 Krasnodarskiy Krai
94 Territories outside Russia supervised by the Department of Restricted Sites at the Ministry of Internal Affairs of Russian Federation
95 Chechnya Republic
96 Sverdlovsk Oblast
97 Moscow City
98 St.Petersburg City
99 Moscow City
102 Bashkortostan Republic
111 Komi Republic
116 Tatarstan Republic
121 Bashkortostan Republic
125 Primorsky Krai
150 Moscow Oblast
152 Nizhny Novgorod Oblast
154 Novosibirsk Oblast
159 Perm Krai
161 Rostov Oblast
163 Samara Oblast
164 Saratov Oblast
173 Ulyanovsk Oblast
174 Chelyabinsk Oblast
177 Moscow City
199 Moscow City
-- Plates having "20" as their
   regional code, are not issued
   and have been replaced by
    "
95".
-- Codes "99" and later "90" are
    used because their previous
    series ("
77" and "50"
    respectively) have been
    exhausted.
-- Code "97" was introduced in
    June 2002, when Moscow
    exhausted its "
99" code
-- Code "98" introduced in 2004
    when St. Petersburg exhausted     its "
78" code
-- Code "93" was introduced in
    June 2005 when
    Krasnodarskiy Krai exhausted
    its "
23" code
-- Code "177" was promised to
    be introduced in May 2005.
    Actually, seen by the site author     in July 2005
-- Code
"96" was expected to be
    introduced in August 2005
-- Code
"116" first seen in
   January 2006
-- Code
"125" was reported to be     seen in September 2005
-- Code
"150" was introduced in
    May 2006
-- Code
"152" first reported in
    2006
-- Code
"164" was introduced in
    May 2006
Notes