MEMORANDUM **

Plaintiff Gerald Martin appeals from the district court’s order denying his motion for class certification. Rowden v. Pac. Parking Sys., Inc., 282 F.R.D. 581, 585 (C.D.Cal. 2012). 1 The district court denied the motion, in part, because the proposed class was not ascertainable. Id. We hold that the district court did not abuse its discretion in this respect and affirm.

*804 At oral argument on appeal, Martins counsel stated that, since the class definition refers to a “person’s” card, the proposed class excludes all individuals who used a business credit card to purchase parking. 2 The district court had found, based on factual evidence specific to this case, that “many” of the hundreds of thousands of individuals who used the parking lots did so on business. Id. at 586 n. 5.

Furthermore, the district court had concluded that the proposed class was not ascertainable because there was no reasonably efficient way to determine which of the hundreds of thousands of individuals who used the parking lots “used a personal credit or debit card, rather than a business or corporate card,” to purchase parking. Id. at 585; see, e.g., Pierce v. County of Orange, 526 F.3d 1190, 1200 (9th Cir. 2008) (concluding that the district court did not abuse its discretion in decertifying a damages class because “Rule 23(b)(3) would not offer a superior method for fair and efficient adjudication in light of expected difficulties identifying class members”). Because Martin has not demonstrated that it would be administratively feasible to determine which individuals used personal, and not business, credit cards to purchase parking, Rowden, 282 F.R.D. at 585-86, the district court did not abuse its discretion in concluding that the proposed class was not ascertainable.

Moreover, it appears from the record that there is no administratively feasible manner to determine another central criterion of class membership: whether individuals actually received parking permits with expiration dates printed on them. Martin presented little persuasive, admissible evidence that all of the machines at issue in this case printed expiration dates uniformly from 2008 to 2011, and few potential class members are likely to have kept their up to four-year-old permits. To prove class membership, individuals also would have to demonstrate that they did not suffer identity theft from Defendants’ actions. Most importantly, Martin has pointed this court to no place in the record where he proposed even a general plan to the district court for making these determinations, beyond suggesting that individuals self-identify themselves as members of the class. 3

.Given these difficulties identifying the members of the proposed class, and the fact that Martin proposed no plan to the district court for manageably determining which individuals are members, we conclude that the court did not abuse its discretion in denying class certification. We do not address, and express no opinion regarding, the other reasons on which the district court based its denial. Id. at 586-87.

AFFIRMED.