The Airport Development Law establishes four classifications for airports.
ð ɪ WORD_BOUNDARY ɛ ɹ p ɔ ɹ t WORD_BOUNDARY d ɪ v ɛ l ə p m ə n t WORD_BOUNDARY l ɔ WORD_BOUNDARY ɪ s t æ b l ɪ ʃ ɪ z WORD_BOUNDARY f ɔ ɹ WORD_BOUNDARY k l æ s ɪ f ɪ k eɪ ʃ ə n z WORD_BOUNDARY f ɔ ɹ WORD_BOUNDARY ɛ ɹ p ɔ ɹ t s WORD_BOUNDARY