quality of hospital care or medical services the veteran has received at the facility. (c) Consultation The contract entered into under subsection (a) shall provide that in designing and conducting the surveys for each medical facility of the Department pursuant to such contract, the non-government entity shall consult with veterans service organizations. (d) Certification The contract entered into under subsection (a) shall provide that— (1) before conducting a survey pursuant to the contract, the non-government entity shall submit the proposed survey to the Comptroller General who shall assess whether the survey is scientifically valid and whether the proposed sample size of veterans to be surveyed is statistically significant