opinion: Per Curiam.
  Respondents brought this suit in an Iowa District Court under § 16 (b) of the Fair Labor Standards Act, 52 Stat. 1069, as amended, 29 U. S. C. § 216 (b), to recover overtime compensation allegedly not paid by their petitioner employer in violation of the overtime provisions of the Act, 29 U. S. C. § 207 (a) (1). The District Court denied petitioner's motion to dismiss the action for failure of respondents to exhaust the grievance arbitration procedures provided in a collective-bargaining agreement between petitioner and respondents' union and awarded respondents the overtime claimed plus costs and attorneys’ fees. The Supreme Court of Iowa affirmed, 185 N. W. 2d 738 (1971). We granted certiorari, 404 U. S. 820 (1971).
  The collective-bargaining agreement required petitioner to provide a lunch period for each employee no later than five hours from the start of an employee’s shift. Petitioner provided the lunch period but required the employees to remain on call during the period. Respondents did not choose, as perhaps under the contract was open to them, to make the requirement the basis of a grievance for alleged violation either of the lunch-period provision or of the hours-of-work provision, Art. VII, requiring time and one-half for hours worked over eight in any day or 40 in any week. They claimed instead that, because of the requirement, the Fair Labor Standards Act, as a matter of law, rendered the lunch period “work” time, whether or not actually worked, for' the purpose of determining whether petitioner violated its statutory obligation to pay overtime rates for work hours over 40 in any work week. See Armour & Co. v. Wantock, 323 U. S. 126 (1944). The grievance thus pertained not to an alleged violation of the agreement but to an alleged violation of the Fair Labor Standards Act.
  In U. S. Bulk Carriers v. Arguelles, 400 U. S. 351 (1971), the Court held that a seaman could sue in federal court for wages under 46 U. S. C. § 596 without invoking grievance and arbitration procedures under a collective-bargaining agreement that provided for resolution of all disputes and grievances, not merely those based on alleged violations of the contract. We granted certiorari in this case to decide whether, similarly, employees may sue in court to recover overtime allegedly withheld in violation of the Fair Labor Standards Act, if their complaint of alleged statutory violation is also subject to resolution under grievance and arbitration provisions of a collective-bargaining agreement. It developed at oral argument, however, that the grievance and arbitration provisions, Art. XX of the collective-bargaining agreement involved in this case, do not have the broad scope of the procedures in Arguelles, but apply only to grievances “pertaining to a violation of the Agreement.” Moreover, the issues as presented by petitioner provide no occasion to address, and we intimate no view upon, the question whether, although the statutory claim is not subject to contract arbitration, pursuit of the statutory remedy is nevertheless barred because respondents might have made the requirement to be on call the basis of a grievance for alleged violation of the lunch period or overtime provision of the collective-bargaining agreement. In these circumstances, which were not fully apprehended at the time certiorari was granted, the writ of certiorari will be dismissed as improvidently granted. The Monrosa v. Carbon Black, Inc., 359 U. S. 180, 183 (1959).
  It is so ordered.
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