ɪɾ ɪz ɐ lˈiːɡəl dᵻpˈɑːzɪt lˈaɪbɹɛɹi, ðˈɛɹfoːɹ ɪɾ ɪz ɛntˈaɪɾəld tə ɹᵻkwˈɛst ɐ fɹˈiː kˈɑːpi ʌv ˈɛvɹi bˈʊk pˈʌblɪʃt ɪn sɹˌiː lˈæŋkə.
It is a legal deposit library, therefore it is entitled to request a free copy of every book published in Sri Lanka.