Scuderia Toro Rosso broke the first of its curfews after team principal Franz Tost arrived too early for work in Singapore on Friday afternoon.
As part of a new rule introduced at the start of this year, operational team personnel are not allowed to be in the confines of the circuit between a time period that stretches from nine hours before first practice to three hours before.
The skewed timetable at Singapore's night race meant that the curfew stretched from 9am to 3pm on Friday - which caught Tost out after he arrived early to begin his day's work before the afternoon cut-off.
Teams are allowed four exceptions to the curfew over the course of the season without punishment, which means no sanctions will be taken against Toro Rosso.
Red Bull Racing, HRT and Renault have all broken the curfew at various points this season, but no team has yet exceeded the four limit.
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