For the 2025A semester, proposals were reviewed by a Time Allocation Committee whose members have expertise in various fields of Time Domain Astronomy.
For the 2023A through 2024B semesters, every non-Key-Project proposal was subjected to "Distributed Peer Review" (DPR). Rather than having a small panel of experts read and review a large number of proposals, we had each member of a large panel of experts read and review a small number of proposals in her/his area of expertise. We assembled this panel from members of the LCO community. Specifically:
Scientists who have served on DPR panels and TACs in recent years include:
| David Trilling | Lowell Observatory | Asteroids, NEOs | 2025A |
| Michele Silverstein | Naval Research Laboratory | Exoplanets | 2025A |
| Adina Feinstein | Michigan State U. | Exoplanets, Flare stars | 2025A |
| Kate Grier | U. Wisconsin | Active Galactic Nuclei | 2025A |
| Giacomo Terreran | Adler Planetarium | Supernovae, Explosive transients | 2025A |
| Jennifer Andrews | NOIRLab | Supernovae, Explosive transients | 2025A |
| Joe Masiero | IPAC/Caltech | Asteroids, NEOs | 2023B, 2025A |
| Ann Marie Cody | SETI Institute | Exoplanets, stellar astronomy | 2023B, 2025A |
| Luisa Rebull | IPAC | Young stars; Stellar rotation | 2023A-2025A |
| Rob Siverd | U. Hawaii, Institute for Astronomy | Exoplanets; Active stars; Eclipsing binaries | 2023A-2025A |
| Etienne Bachelet | NASA JPL | Exoplanets, Microlensing | 2023A-2025A |
| Varoujan Gorjian | NASA JPL | Active galactic nuclei | 2020B, 2025A |
| Griffin Hosseinzadeh | U. Arizona | Supernovae, SMBHs | 2024A-2024B |
| Julian van Eyken | IPAC | Exoplanets | 2024A-2024B |
| Teddy Kareta | Lowell Observatory | Solar system small bodies | 2024A-2024B |
| Matthew Green | Tel Aviv University | Stellar astronomy, compact binaries | 2024A-2024B |
| Sjoert van Velzen | Leiden Observatory | Tidal Disruption Events | 2022B-2023A, 2024A-2024B |
| Yiannis Tsapras | U. Heidelberg | Exoplanets, Microlensing | 2023B-2024B |
| Jonathan Trump | U. Connecticut | Active Galactic Nuclei; Supermassive Black Holes | 2023A-2024B |
| Hannu Parviainen | Instituto de Astrofisica de Canarias | Exoplanets | 2023A-2024B |
| Felipe Murgas | Instituto de Astrofisica de Canarias | Exoplanets | 2023A-2024B |
| Nick Moskovitz | Lowell Observatory | Solar system | 2021A-2024B |
| Matthew Knight | US Naval Academy | Asteroids, Comets | 2023A-2024B |
| Matthew Kenworthy | Leiden Observatory | Exoplanets, Circumstellar Material | 2023A-2024B |
| Akihiko Fukui | Astrobiology Center, U. Tokyo | Exoplanets, Atmospheres | 2023A-2024B |
| David Ciardi | IPAC | Exoplanets, Star formation | 2023A-2024B |
| Artem Burdanov | MIT | Exoplanets | 2022A-2024B |
| Misty Bentz | Georgia State | Active Galactic Nuclei | 2021B-2024B |
| Iair Arcavi | Tel Aviv University | TDEs, GW events, Supernovae | 2023A-2024B |
| Eric Gaidos | U. Hawaii, Institute for Astronomy | Planet formation, Young stars | 2023A-2023B, 2024B |
| Elisabeth Newton | Dartmouth College | Exoplanets; Dwarf Stars | 2021A-2021B, 2024A |
| Marshall Johnson | The Ohio State University | Exoplanets | 2023A-2024A |
| John Gizis | U. Delaware | Stellar variability; brown dwarfs | 2021A, 2023A-2024A |
| Allison Youngblood | U. Colorado | Exoplanets; Stellar Activity | 2022A-2022B, 2023B |
| Tommaso Treu | UCLA | AGN; Gravitational Lensing | 2021A, 2023B |
| Tom Matheson | NOIR Lab | Supernovae, Extragalactic Transients | 2014B-2020B, 2023B |
| Jennifer Marshall | Texas A&M U. | Near-field cosmology; Galaxy kinematics; Cool stars | 2017AB, 2020B, 2023B |
| Daichi Hiramatsu | Harvard Center for Astrophysics | Supernovae | 2023A-2023B |
| Sarah Sonnett | PSI | Asteroids, Comets, Exoplanets | 2014B-2017AB, 2020B, 2023A-2023B |
| Christoffer Fremling | Caltech | Supernovae | 2022A |
| Joel Hartman | Princeton | Exoplanets | 2021A-2021B |
| Wolfgang Kerzendorf | Michigan State | Supernovae | 2021B |
| Federica Bianco | U. Delaware | Supernovae; Extragalactic transients | 2021A |
| Leslie Hebb | Hobart & William Smith Colleges | Stellar activity; Exoplanets | 2014B-2020B |
| Michele Bannister | U. Canterbury | Solar system small bodies | 2020A-2020B |
| Stella Kafka | AAVSO | Active stars; Cataclysmic variables | 2020A-2020B |
| Stan Metchev | U. Western Ontario | Brown dwarfs | 2020B |
| Driss Takir | NASA JSC | Solar system formation; asteroid chemistry | 2020B |
| Karen Leighly | U. Oklahoma | Active galactic nuclei | 2020B |
| Brad Cenko | NASA GSFC | Explosive transients: supernovae, GRBs | 2020B |
| Andres Jordan | PUC Chile | Exoplanets | 2020B |
| Jacqueline Radigan | Utah Valley U. | Low mass stars; Exoplanets | 2019B-2020A |
| Eva Lilly | U. Hawaii | Asteroids, Comets | 2018A-2019B |
| Tim Brandt | UCSB | Exoplanets, Stellar Evolution, Clusters | 2018A-2020A |
| Rick Edelson | U. Maryland | Active Galactic Nuclei | 2014B-2019B |
| Ian Howarth | UCL | Stellar Evolution; Diffuse ISM | 2014A-2018B |
| John Ruan | McGill U. | Active Galactic Nuclei; High-Energy Astrophysics | 2018B |
| Megan Schwamb | Gemini | Solar System Evolution; Kuiper Belt Objects | 2014A-2018A |
| Michael Eracleous | PSU | AGN; CVs; GRBs, XRBs | 2014A-2018A |
| Doug Leonard | SDSU | Supernovae | 2014A-2017AB |
| Adam Burgasser | UCSD | Low Mass Stars; Brown Dwarfs | 2014A-2017AB |
| Zach Berta-Thompson | U. Colorado | Extrasolar Planets | 2017AB |
| Jacqueline Keane | U. Hawaii | Protostellar Envelope Chemistry; Ice and Dust in YSOs | 2017AB |
| Emily Kramer | NASA JPL | Comets, NEOs | 2015B |
| Stefano Valenti | UC, Davis | Supernovae, AGN reverberation mapping | 2012A-2014A |
| Avi Shporer | MIT | Exoplanets, Brown Dwarfs, Binary Stars | 2011A-2014A |
| Aaron Barth | UC, Irvine | AGN, Supermassive Black Holes | 2011A-2014A |