In German, most prepositions come right before the noun they modify. However, a few special prepositions can—or even prefer to—come after the noun. These are sometimes called "postpositions." Two of the most useful ones for talking about rules, expectations, and driving are entgegen (contrary to) and entsprechend (according to). Both of these require the dative case.
"entgegen" (Contrary to)
When you want to say that someone acted against a rule, expectation, or instruction, use entgegen. While it can occasionally be placed before the noun, it is most commonly placed after the dative noun it modifies.
"entsprechend" (According to)
To express that an action is in line with a rule, law, or situation, use entsprechend. Just like entgegen, it typically follows its dative noun.
Word Order in the Sentence
If you place the dative noun and its postposition at the beginning of the sentence to emphasize it, the entire phrase counts as the first position. As always in standard German sentences, the conjugated verb must immediately follow in the second position.
If the phrase appears later in the sentence, it simply acts as an adverbial block describing how the action was performed.