beginning of the combination, due to its resemblance to zero, and the combinations BB, AD, AK were not used either. AY, GG and HZ, but until much later. Also in the beginning there was a certain unintentional geographical distribution, some series assigned according to the table, for example: The combinations that begin with the letters A, B, C, E, F, G and H, were not issued following a correlative order, unlike what was done from 1990 (D) and until the end of the system. Thus, combinations such as CK and FK are recorded at the same time (until 1984), while other combinations were not issued simultaneously, for example, HN aired in the early 1980s, while FN and GN appeared towards the end of that decade. Some combinations were issued for most of the decade, such as AL, which can be seen on both early 1980s and late 1990s and even 1990s and later vehicles . In 1990 plates began to be issued following a correlative order marked on the second letter, beginning with D: DA - DB - DD ( DC was not used), and so on. E, F, G, and H had already been used in the previous system and J had been discarded because it resembled I, so K was continued: KA - KB - KC - KD, etc. This order allows to identify, with moderate precision, the year of registration of the vehicle, for example, the letter S began to be issued from the end of 1997, the letter X corresponds to the middle of 2003, etc. When the combinations reached ZZ in 2006, it was decided to extend the life of the system by incorporating the letters W and M, originally discarded due to their width. It began with WA, progressing successively to WZ, then, it was used as the second letter, starting from ZW and progressing in reverse order to KW; then the M was continued, issuing patents in reverse order from MZ to MX, whichever was the last combination issued under that system. There is no certainty that (almost) all the combinations have been used. The numbers start from 1000 (AA·10-00) and go up consecutively until they reach 9999 (AA·'99-99). All the license plates bear the word CHILE at the bottom, except the bus plates of the Transantiago plan, which say TRANSANTIAGO, and the sign that separates the letters from the numbers is the