OPINION OF THE COURT
Plaintiff Lawrence E. Davis appeals from a final order of the district court that granted defendant Calgon Corporation’s motion to dismiss. The district court dismissed plaintiff’s age discrimination complaint because it found that plaintiff had not satisfied the preconditions to suit specified in the Age Discrimination in Employment Act, 29 U.S.C. §§ 621 et seq. (1976) (ADEA).
I.
Plaintiff’s complaint alleges that he was employed as an executive by defendant from 1967 until his employment was terminated on June 30,1978, at age 55. Plaintiff asserts that his discharge violated the ADEA 1 because it was done in furtherance of a general corporate policy adopted by defendant of demoting and terminating its executives solely on account of age and replacing them with individuals under the age of 40.
On January 29, 1979, 213 days after his discharge, plaintiff filed a complaint alleging age discrimination with the Pennsylvania Human Relations Commission (the PHRC). Ten days later, he filed a charge with the Secretary of Labor (the Secre *675 tary). 2 After receiving notice from the PHRC that it had terminated state proceedings and from the Secretary that he had concluded conciliation efforts, plaintiff filed suit in the district court.
Defendant moved to dismiss plaintiff’s complaint on the ground that plaintiff had not filed his charge with the Secretary within the time limits prescribed in the ADEA, 29 U.S.C.A. § 626(d) (West 1979 Supp.). Section 626(d) provides that such a charge shall be filed:
(1) within 180 days after the alleged unlawful practice occurred; or
(2) in a case to which section 633(b) of this title applies, within 300 days after the alleged unlawful practice occurred, or within 30 days after receipt by the individual of notice of termination of proceedings under State law, whichever is earlier.
Section 633(b), which deals with the relationship between federal and state age discrimination actions, applies to ADEA claims based on alleged unlawful practices occurring in “deferral states.” These are states having a law prohibiting age discrimination in employment and establishing a state authority to grant or seek relief from such discrimination.
Plaintiff filed both his state and federal claims after 180 days but before 300 days. Because Pennsylvania is a deferral state,
see Bonham v. Dresser Industries, Inc.,
II.
The basis of the district court’s conclusion that plaintiff’s filing with the PHRC was not timely is unclear. The court may have found the filing untimely either because plaintiff did not file with the PHRC within the 90-day state statute of limitations, see Pa.Stat.Ann. tit. 43, § 959 (Purdon 1979 Supp.), or because he did not make the state filing within 180 days. We are unable to determine which of these time limits was relied upon by the district court. Therefore, we must consider both of them to determine whether the district court’s decision to dismiss plaintiff’s complaint was correct.
A.
In
Oscar Mayer & Co. v. Evans,
B.
Defendant argues, however, that the extended period for filing a charge with the Secretary provided in § 626(d)(2) applies *676 only when a plaintiff files with the state within the shorter federal period of 180 days and that the district court based its decision on plaintiff’s failure to file with the state within this period. It contends that the district court properly granted its motion to dismiss because plaintiff did not file with the PHRC until more than 180 days after his discharge and, consequently, that plaintiff was not entitled to 300 days to file with the Secretary. 3
Defendant relies on a number of cases decided under both Title VII and the ADEA that have construed the filing limits for these statutes to require deferral-state plaintiffs to file with the state within the 180-day federal period to be entitled to an extended period for filing with the proper federal authority.
See, e. g., Ewald v. Great Atlantic & Pacific Tea Co.,
Although the precise issue presented in
Mohasco
concerned the meaning of the term “filed” in subsections (c) and (e) of § 706 of the Civil Rights Act of 1964, 42 U.S.C. § 2000e-5(c), (e) (1976), the Court examined
Olson
and its progeny in two footnotes. -U.S. at --- nn. 16, 19,
[W]e do not believe that a court should read in a time limitation provision that Congress has not seen fit to include . at least when dealing with “a statutory scheme in which laymen, unassisted by trained lawyers, initiate the process.”
Id.
(quoting
Love v. Pullman Co.,
While
Mohasco
involved the time limitations of Title VII, we find the Supreme Court’s statements equally applicable to the ADEA. First, we have recognized that interpretations of similar language in Title VII can provide guidance for interpretation of the ADEA.
See Ricks v. Delaware State College,
Moreover, in its discussion rejecting the
Olson
approach, the Court also cited
Ciccone v. Textron, Inc., supra,
a case that relied on
Olson
to hold that an ADEA plaintiff must file with the state within 180 days to be entitled to the extended filing period of § 626(d)(2). Finally, the ADEA, like Title VII, is a statutory scheme in which laymen, unassisted by counsel, often initiate the process.
See Oscar Mayer & Co. v. Evans,
*677
Nothing in the language of § 626(d)(2) imposes on deferral-state plaintiffs a duty to file with the state within 180 days to be entitled to the extended filing period in which to file with the Secretary. Regardless of what our own conclusions would be, we find that the Supreme Court’s statements in
Mohasco
control disposition of this issue, and we refuse to “read in a time limitation provision that Congress has not seen fit to include.” Therefore, we hold that a plaintiff in a deferral state is entitled to the extended period provided by § 626(d)(2) regardless of whether he has filed a state administrative complaint within 180 days after the alleged discrimination occurred.
Accord, Bean v. Crocker National Bank,
III.
The order of the district court dismissing plaintiff’s complaint will be reversed.
Notes
. Although plaintiffs complaint also refers to the Fair Labor Standards Act, 29 U.S.C. §§ 201 et seq. (1976), we do not read his factual recitals to assert an independent cause of action or claim for relief under this statute.
. At that time, the ADEA required the plaintiff to file a charge with the Secretary. See 29 U.S.C.A. § 626(d) (West 1979 Supp.). Under Reorg. Plan No. 1 of 1978, 43 Fed.Reg. 19,807 (1978) (effective July 1, 1979), all functions vested in the Secretary under § 626(d) were transferred to the EEOC. Because this case arose prior to the effective date of the reorganization, we will refer only to the Secretary in this opinion.
. Defendant asserts that two prior decisions of this court control our determination of this issue.
See Holliday v. Ketchum, MacLeod & Grove, Inc.,
