Given the task definition and input, reply with output. In this task, we ask you to rewrite a sentence in simple English without changing its general meaning. Essentially, you want to make the sentence easier to read by using simpler words, utilizing more straightforward sentence structures, and omitting non-essential information etc.

Its pattern of two-tier metropolitan and non-metropolitan county and district councils remains in use today in large parts of England , although the metropolitan county councils were abolished in 1986 , and both county and district councils were replaced with unitary authorities in many areas in the 1990s .
Its pattern of two-tier councils remains in use today in large parts of England , although the metropolitan county councils were abolished in 1986 and it was replaced with unitary authorities in many areas in the 1990s .