The trolleybus system underwent several changes in early 2007 in connection with the implementation of a regional public-transportation coordination program called the Plan de Transporte Metropolitano Valparaíso (TMV) by the regional ministry of transportation.
 TCSA reinstated the former Avenida Pedro Montt route in January, after the ministry granted the company near-exclusive rights to provide transit service in that corridor.
 The company's now-two routes became numbered 801 (via Av.
Pedro Montt) and 802 (via Av.
Colón), under the TMV plan, which assigned route numbers to all bus and minibus routes in the region; previously, they had been unnumbered.
 Both routes continued to terminate at Aduana and Barón.
 The TMV also required that operators apply a uniform paint scheme to their vehicles, with different colors for different Unidades de negocios (business units).
 TCSA's routes were the sole routes in Unidad 8, and the company was required to repaint all of its trolleybuses into a common livery of green-and-cream, which was completed in April 2007.
 Until then, some of the secondhand Swiss trolleybuses (acquired 15–16 years earlier) had retained the paint schemes of their cities of origin, while others, and some Pullmans, had been wearing advertising liveries; the latter were also no longer allowed under the TMV.
 The company also introduced Sunday service (on both routes), for the first time in the history of private operation, and perhaps the system's history, starting on 6 January 2007.

TCSA initially reported an increase of at least 30% in its revenue following the reorganization, thanks to its near-monopoly on serving busy Avenida Pedro Montt.
However, the situation turned around quickly after complaints from merchants along the street convinced the transportation ministry to permit the return to Avenida Montt of 16 bus routes run by other companies only three weeks later.
The trolleybus company's revenue dropped sharply, and it discontinued Sunday service in April 2007.
 Faced with this unexpected loss of revenue at the same time that it had just incurred the expenses of having to repaint its fleet (to meet the TMV requirements) and expand service (to a second route), the company announced in May that the trolleybus system would close in mid-June.
 The unexpected news upset many citizens, as the vintage trolleybuses, designated a national historic monument in 2003, had become a cherished local icon.
 Even Chilean president Michelle Bachelet voiced her support, telling regional transportation minister René Cortázar, "The trolleys can't stop running in Valparaíso", while at a luncheon with Valparaíso's mayor.
 Negotiations between TCSA and government officials led to agreements that averted the planned closure.
 Service continued relatively unchanged on the system's longtime Avenida Colón route (802), but the recently revived Avenida Pedro Montt service (route 801) was discontinued once again, on or around 1 September 2007.

On 31 October 2007, the historic monument designation given earlier to the Pullman-Standard trolleybuses was expanded to include most of the system's  infrastructure, such as overhead wires, support poles and substations.
The trolleybus system underwent several changes in early 2007 in connection with the implementation of a regional public-transportation coordination program called the Plan de Transporte Metropolitano Valparaíso (TMV) by the regional ministry of transportation.  TCSA reinstated the former Avenida Pedro Montt route in January, after the ministry granted the company near-exclusive rights to provide transit service in that corridor.  The company's now-two routes became numbered 801 (via Av. Pedro Montt) and 802 (via Av. Colón), under the TMV plan, which assigned route numbers to all bus and minibus routes in the region; previously, they had been unnumbered.  Both routes continued to terminate at Aduana and Barón.  The TMV also required that operators apply a uniform paint scheme to their vehicles, with different colors for different Unidades de negocios (business units).  TCSA's routes were the sole routes in Unidad 8, and the company was required to repaint all of its trolleybuses into a common livery of green-and-cream, which was completed in April 2007.  Until then, some of the secondhand Swiss trolleybuses (acquired 15–16 years earlier) had retained the paint schemes of their cities of origin, while others, and some Pullmans, had been wearing advertising liveries; the latter were also no longer allowed under the TMV.  The company also introduced Sunday service (on both routes), for the first time in the history of private operation, and perhaps the system's history, starting on 6 January 2007.
TCSA initially reported an increase of at least 30% in its revenue following the reorganization, thanks to its near-monopoly on serving busy Avenida Pedro Montt. However, the situation turned around quickly after complaints from merchants along the street convinced the transportation ministry to permit the return to Avenida Montt of 16 bus routes run by other companies only three weeks later. The trolleybus company's revenue dropped sharply, and it discontinued Sunday service in April 2007.  Faced with this unexpected loss of revenue at the same time that it had just incurred the expenses of having to repaint its fleet (to meet the TMV requirements) and expand service (to a second route), the company announced in May that the trolleybus system would close in mid-June.  The unexpected news upset many citizens, as the vintage trolleybuses, designated a national historic monument in 2003, had become a cherished local icon.  Even Chilean president Michelle Bachelet voiced her support, telling regional transportation minister René Cortázar, "The trolleys can't stop running in Valparaíso", while at a luncheon with Valparaíso's mayor.  Negotiations between TCSA and government officials led to agreements that averted the planned closure.  Service continued relatively unchanged on the system's longtime Avenida Colón route (802), but the recently revived Avenida Pedro Montt service (route 801) was discontinued once again, on or around 1 September 2007.
On 31 October 2007, the historic monument designation given earlier to the Pullman-Standard trolleybuses was expanded to include most of the system's  infrastructure, such as overhead wires, support poles and substations.
Trolleybuses in Valparaíso