 The California shift has been going on in California English for the past decades. It is mostly attributed to young urban and coastal speakers and is not universal within nor limited to the California area. It can be described as a lowering chain shift. Here are the phonological details. The short E is moving in two directions. Before the Vila nasal, it shifts towards the vowel in Bean and before other consonants, it shifts towards the vowel in Set and Bed. As a consequence, short E is shifting towards these sounds while short U is shifting towards Bed and Rest. Furthermore, there is a short A-split before nasal consonants, it becomes a diphthong where the first part is shifting towards Long E before other consonants, it shifts in the other direction. Two further sound shifts are key elements of the California shift. The low back-mutter where the distinction between the vowels in Cod and Cod has been lost and the fronting of U. Finally, the Long O becomes a diphthong with the first part shifting towards A as in Bed, Ten or Guest.