  This work reports the production and characterization of lithium-loaded
liquid scintillator (LiLS) for the Precision Reactor Oscillation and Spectrum
Experiment (PROSPECT). Fifty-nine 90 liter batches of LiLS (${}^6{\rm Li}$ mass
fraction 0.082%$\pm$0.001%) were produced and samples from all batches were
characterized by measuring their optical absorbance relative to air, light
yield relative to a pure liquid scintillator reference, and pulse shape
discrimination capability. Fifty-seven batches passed the quality assurance
criteria and were used for the PROSPECT experiment.
