DM NO. 508, S. 2023. REQUEST TO BENCHMARK THE TECHNOLOGY LIVELIHOOD EDUCATION, TECHNICAL VOCATIONAL EDUCATION (TLE-TVL), AND SCIENCE LABORATORIES Posted on May 16, 2023 by DepEd Mandaluyong Leave a comment DM NO. 508, S. 2023. REQUEST TO BENCHMARK THE TECHNOLOGY LIVELIHOOD EDUCATION, TECHNICAL VOCATIONAL EDUCATION (TLE-TVL), AND SCIENCE LABORATORIES Memorandum Numbered