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¹Ì±¹ÀÇ Ç×°ø¹ýÀº ¿µ±¹Ã³·³ Ä£ÀýÇÏ°Ô TBO¿¡ ´ëÇÑ ÀÚ¼¼ÇÑ ¼³¸íÀ» ÇÏÁö¾Ê°í ÀÖ¾î¼ Á¶±Ý º¹ÀâÇÕ´Ï´Ù. ¹Ì±¹ Ç×°ø¹ý¿¡¼ CFRÀ̶ó´Â ¸»µµ ³ª¿À°í FARÀ̶ó´Â ¸»µµ ³ª¿À´Âµ¥ °ÅÀÇ °°Àº °ÍÀ̶ó°í º¸¸é µË´Ï´Ù. Á¤È®ÇÏ°Ô´Â Ç×°ø°ü·Ã¹ýÀº FAR (Federal Aviation Regulations) Àε¥ ÀÌ°ÍÀº ¿¬¹æ¹ý·É 14È£ (CFR, Code of Federal Regulations)ÀÇ ÀϺÎÀÔ´Ï´Ù. ±×¸®°í FARÀº °¢°¢ÀÇ Àû¿ë´ë»ó¿¡ µû¶ó¼ Part¶ó°í ºÐ·ùµÇ´Â¿¡ ¿¹¸¦µé¸é part 91Àº General Operating and Flight Rules, part 121Àº ¿©°´±â ¿î¼Û°ü·Ã, part 135´Â 9Àν ÀÌÇÏ Àü¼¼Ç×°ø °ü·Ã µîÀÔ´Ï´Ù. ÀÏ´Ü part 121°ú part 135´Â ¿©°´±âÀ̹ǷΠTBO´Â ´ç¿¬È÷ ÇʼöÁؼö (mandatory) ÀÔ´Ï´Ù.
Part 91ÀÌ LSA¿Í ¾î¶»°Ô °ü·ÃµÇ´À³Ä°¡ ¹®Á¦Àε¥, part 91.327ÀÌ LSA Á¤ºñ°ü·ÃÀº ¸ÂÁö¸¸ ÀÚ¼¼ÇÏ°Ô TBO¿¡ ´ëÇؼ ¾ð±ÞÇÏÁö´Â ¾Ê°í ÀÖ½À´Ï´Ù.
2008³â¿¡ Çѱ¹ ±¹ÅäºÎ¿Í ¹Ì±¹ FAA »çÀÌ¿¡ ¿£Áø TBO ¹®Á¦¸¦ ÀdzíÇÑ À̸ÞÀÏÀ» º¸¸é ¹Ì±¹ FAAÀÇ ´ä½ÅÀº ÀÌ·¸½À´Ï´Ù:
"Part 91À» Àû¿ë¹Þ´Â Ç×°ø±â´Â (LSA ´ç¿¬ Æ÷ÇÔ, part 91.327) TBO°¡ ÇʼöÁؼö´Â ¾Æ´Ï°í part 121, part 135 (µÑ´Ù ¿©°´±â) Àû¿ë Ç×°ø±â´Â TBO°¡ ÇʼöÁؼöÀÌ´Ù. ÀÌ·¸°Ô ´ä½ÅÇÏ´Â ±Ù°Å´Â 1998³â 6¿ù 15ÀÏÀÚ ¹Ì±¹ ±³ÅëºÎÀÇ ±Ç°í»çÇ× (Advisory Circular) AC 20-105B ÀÌ´Ù. "
±¸±Û °Ë»ö¿¡¼ AC 20-105B¸¦ Ãĺ¸¸é ±× ¹®¼°¡ ¶ß´Âµ¥ 5ÆäÀÌÁö f. (2)¿¡ part 91 Ç×°ø±â´Â TBO°¡ ÇʼöÁؼö»çÇ×ÀÌ ¾Æ´Ï¶ó°í ºÐ¸íÇÏ°Ô ³ª¿ÍÀÖ½À´Ï´Ù.
°á·ÐÀ» ³»¸®ÀÚ¸é FAA ±ÔÁ¤¿¡ "LSA´Â TBO Àû¿ë´ë»óÀÌ ¾Æ´Ï´Ù"¶ó´Â ¸»Àº ¾îµð¿¡µµ ¾ø½À´Ï´Ù. ÇÏÁö¸¸ ¹Ì±¹ Á¤ºÎÀÇ ±Ç°íÁöħ (AC)¿¡ part 91 Àû¿ë Ç×°ø±â´Â TBO°¡ ÇʼöÁؼö°¡ ¾Æ´Ï¶ó´Â ¸»ÀÌ ÀÖ°í LSAµµ part 91 ´ë»óÀ̹ǷΠ°æ·®Ç×°øÀÇ TBO´Â Çʼö°¡ ¾Æ´Ñ ±Ç°í»çÇ×ÀÌ µÇ°Ú½À´Ï´Ù.