Version 1 and 2: In the associate degree/certificate category, 23 semester hours, distributed as follows: 3 semester hours in Drafting, 3 semester hours in HVAC Systems, 1 semester hour in Industrial Safety, 3 semester hours in Print Reading, 8 semester hours in Sheet Metal Working and Installation, 3 semester hours in Technical Math, 2 semester hours in Welding, or in the lower division baccalaureate/associate degree category, 14 semester hours, distributed as follows: 3 semester hours in Drafting, 1 semester hour in Industrial Safety, 8 semester hours in Sheet Metal Working and Installation, and 2 semester hours in Welding (12/93). Version 3: In the associate degree/certificate category, 27 semester hours, distributed as follows: 3 semester hours in Drafting, 6 semester hours in HVAC Systems (3 lecture, 3 shop), 1 semester hour in Industrial Safety, 3 semester hours in Print Reading, 9 semester hours in Sheet Metal Working and Installation (3 lecture, 6 shop), 3 semester hours in Technical Math, 2 semester hours in Welding, or in the lower division baccalaureate/associate degree category, 21 semester hours, distributed as follows: 3 semester hours in Drafting, 6 semester hours in HVAC Systems (3 lecture, 3 shop) 1 semester hour in Industrial Safety, 9 semester hours in Sheet Metal Working and Installation (3 lecture, 6 shop), and 2 semester hours in Welding (11/98 revalidation). Version 4: In the associate degree/certificate category, 25 semester hours, distributed as follows: 3 semester hours in Drafting, 4 semester hours in HVAC, 1 semester hour in Industrial Safety, 4 semester hours in Print Reading, 5 semester hours in Sheet Metal Working and Installation (2 lecture, 3 shop), 2 semester hours in Technical Math, 2 semester hours in Welding, 3 semester hours in CAD, and 1 semester hour as general technical elective; or in the lower division baccalaureate/associate degree category, 21 semester hours, distributed as follows: 3 semester hours in Drafting, 4 semester hours in HVAC Systems, 1 semester hour in Industrial Safety, 2 semester hours in Print Reading, 5 semester hours in Sheet Metal Working and Installation (2 lecture, 3 shop), 2 semester hours in Welding, 3 semester hours in CAD, and 1 semester hour as general technical elective (8/03 revalidation) (4/09 revalidation). Version 5: In the associate degree/certificate category, 27 semester hours, distributed as follows: 3 semester hours in Drafting, 4 semester hours in HVAC, 2 semester hours in Industrial Safety, 4 semester hours in Print Reading, 5 semester hours in Sheet Metal Working and Installation (2 lecture, 3 shop), 2 semester hours in Technical Math, 3 semester hours in Welding, 3 semester hours in CAD, and 1 semester hour as general technical elective; or in the lower division baccalaureate/associate degree category, 23 semester hours, distributed as follows: 3 semester hours in Drafting, 4 semester hours in HVAC Systems, 2 semester hours in Industrial Safety, 2 semester hours in Print Reading, 5 semester hours in Sheet Metal Working and Installation (2 lecture, 3 shop), 3 semester hours in Welding, 3 semester hours in CAD, and 1 semester hour as general technical elective (9/14 revalidation). Version 6: In the associate/certificate degree category, 28 semester hours, distributed as follows: 3 semester hours in Drafting, 4 semester hours in HVAC, 3 semester hours in Consturction Safety, 4 semester hours in Print Reading, 5 semester hours in Sheet Metal Working and Installation (2 lecture, 3 shop), 2 semester hours in Technical Math, 3 semester hours in Welding, 3 semester hours in CAD, and 1 semester hour as general technical elective; or in the lower division baccalaureate/associate degree category, 24 semester hours, distributed as follows: 3 semester hours in Drafting, 4 semester hours in HVAC Systems, 3 semester hours in Construction Safety, 2 semester hours in Print Reading, 5 semester hours in Sheet Metal Working and Installation (2 lecture, 3 shop), 3 semester hours in Welding, 3 semester hours in CAD, and 1 semester hour as general technical elective (9/19 revalidation).